10 Clever Riddles to Warm Up Your Brain

///10 Clever Riddles to Warm Up Your Brain
1. The Horse Riddle

British scientists have found that during an average day, a horse had one pair of legs travel a total of 18 miles, while the other pair covered 19 miles. Are they really out of their minds, or can this really be true?

horse riddle

2. A Little Boy and a Tree

A little boy 100 centimeters tall put a nail into a tree as a mark for his own height. Three years later, he returned to the tree and put another nail at the point of his height. During this time, the boy has grown 20 centimeters taller, and the tree has grown 40 centimeters taller. What is the distance between the nails?

boy tree riddle

3. The Calendar Riddle

Three Fridays of a certain month have fallen on even-numbered dates. What day of the week was the eighteenth of that month?

calendar riddle

4. The Snake and the Turtle

The snake is 110 years old. “How old are you?”, the snake asked the turtle. The turtle answered, “My age was 10 times greater than was yours when I was just as old as you are now.” How old is the turtle?

snake turtle riddle

5. The Family Portrait Riddle

A man is looking at a picture. ‘Whose picture are you looking at?” someone asked him. The man answered. “I was growing up being the only one in my family. And yet the father of the person in the picture is the son of my father.” Whose portrait the man was looking at?

family portrait riddle

6. The Dragonfly Riddle

Here’s a fun little puzzle just in time before vacations start. The dragonfly spends half the time of each single summer day (24 hours) on sleeping, one third of each summer day on dancing, and one sixth of each summer day on singing. The rest of summer time it decided to devote to preparing for the winter. How many hours during a summer day has the dragonfly spent on actually preparing for the winter season?

dragonfly riddle

7. The King and His Daughter

The king wanted to give his daughter, the princess to an arranged marriage, but the princess did not want that. So the king said that the princess can herself decide her fate. At the public square she will need to draw a rock from a sack, either a white or a black rock. If she draws a black rock – it will be the king’s decision whom to marry, and she draws a white one – she can decide to marry whomever she wants. But the maid told the princess that the king was not going to play fair and would put two black rocks in the sack. The princess could not make the act of discovering two black rocks inside the sack public for fearing people will find out that their ruler was prone to injustice. But next morning she did something that saved her from arranged and unhappy marriage. What did she do?

king princess riddle

8. The Wise Man Riddle

There once was a wise man in town, who had not been favored by the rulers of the city. It was decided to execute him. He was told that he could himself decide whether he lives or dies by his own last words. If his words turn out to be a lie, he will be hanged. If the words turn out to be true, he will be drowned. The wise man thought for a bit and said something that saved him from being executed. What did he say?

wiseman riddle

9. The White Hat Riddle

Two wise men were brought to the palace to determine who is wiser in the following test: in a dark room, from three bell-shaped hats, two white and one black, one will be placed on their head. And then they will stand facing each other in a room without mirrors. The first of the two wise men who correctly names the color of hat he is wearing will be recognized as the wisest. And so, the wise men stood for while, and each of them had a white hat on, and each of them only knew that the other one was wearing a white hat. Suddenly, one of them exclaimed: “I am wearing a white hat!” What would be this wise man’s way of thinking?

two wise men riddle

10. The Office Murder Riddle

A man is found murdered in his office. The body of the man is leaning over the desk, and a revolver is still clamped n his hand. There is a voice recorder on the table. Police turns on the voice recorder of the deceased and immediately hear a recorded message: “I cannot live anymore. Life no longer has any meaning for me …”. After that, a sound of a shot is heard. Why do you think the police immediately concluded that the man was murdered, and this was not a suicide?

murdered man riddle


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By |2017-01-13T21:53:59+00:00June 7th, 2013|Categories: Brain Power, Self-Improvement|Tags: , |9 Comments

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Anna is the founder and lead editor of the website Learning-mind.com. She is passionate about learning new things and reflecting on thought-provoking ideas. She writes about science, psychology and other related topics. She is particularly interested in topics regarding introversion, consciousness and subconscious, perception, human mind's potential, as well as the nature of reality and the universe.


  1. CosmosChild June 7, 2013 at 5:41 pm - Reply

    answers –
    3. sunday
    6.20/3 hrs
    7. she picks out the pebble and throws in the pile of pebbles, then says , “oops, since the pebble left in the sack is black one, i must have picked up the white pebble”. Thus she wins.
    8.he says , ” I am lying”.
    10. who turns off the voice recorder ? somebody else than dead person, so its a murder

    i could not solve 1,2 and 9.

  2. PhiloKGB June 8, 2013 at 3:07 am - Reply

    1. I think this is true. If a horse runs a circular path, the ‘inside’ legs would circumscribe a smaller circle than the ‘outside’ legs.
    2. Assuming that all new vertical growth occurs at the top of the tree, the nails would be 20 cm apart.

  3. shiva June 8, 2013 at 10:19 pm - Reply

    9.if the wise man hav black hat the othr guy wil shout saying hez having white hat on his head bt hez thinking lyk the wise man wat to answr that means the wise man hav white hat on him.. so hez r8….n philokgb i dont think ur answr for 1 is r8 if a horse runs like dat the distnce b/w the pair of legs of horse must b 110 mts apprx i dnt think there is such big horse in this world!!!

  4. Jasmine Stanford June 26, 2013 at 3:52 am - Reply

    The dragon fly one is actually 0 hours.

    1/6 of a day is 4 hours
    1/3 of a day is 8 hours
    1/2 of a day is 12 hours

    = 24 hours accounted for!

  5. Shubham October 8, 2013 at 12:24 pm - Reply

    1. Seems they are out of mind 😀

    2. Nail is 20 cm longer then the boy’s current height

    3. Sunday ( Friday is on 2,9,16,23,30)

    4. 209 (when turtle was 110 snake was 11, after 99 years snake becomes 110 where turtle becomes 110+99=209 year old) ( cosmoschild you are wrong)

    5. Son of the man looking at the picture

    6. No time left for winter preparations after all other activities ( cosmoschild you are wrong)

    7.She picks out the pebble and throws in the pile of pebbles, then says , “oops, since the pebble left in the sack is black one, i must have picked up the white pebble”. Thus she wins. ( cosmoschild)

    8. He said ” I am gonna be hanged” ( cosmos child you are wrong)

    9. If the wise man have black hat the other guy will shout saying he is having white hat on his head but he is thinking like the wise man what to answer that means the wise man have white hat on him. ( Shiva )

    10. The police found the recorder off because in the question it is said “when police turned on the recorder”, it means someone turned it off off course the Killer

    Failed to solve the 1, 7 and 9 but all answers are true except the first one… 🙂

  6. Viktor December 16, 2013 at 3:58 am - Reply

    1. Front legs of horse don’t travel as much back and forth as the rear legs (which do most the work)

    2. The nail is 20cm above the kid

    3. Total of 5 Fridays are 2nd, 9th, 16th, 23rd, 30th…18th=Sunday

    4. (turtle=110)=(snake=11)*10….difference is 99, so 99+110=209

    5. grandfather->father->son….so his son

    6. dragonflies live only for a few months…you don’t even need to do the math to know that answer

    7. ATTENTION!!! She told the king that his maid is a backstabber…(this is how women work you fools!)

    8. no effin clue but probably some word play…I would just keep my mouth shut that way I can’t lie or tell the truth so they let me go haha

    9. 2/3 hats are white…chances are 66% that the hat he was wearing was white

    10. who shut off the recorder?

  7. Viktor December 16, 2013 at 4:03 am - Reply

    Just realized answers were already up….might as well mention again that 7 is that the princess told the king that his maid is working behind his back. women….

  8. Yigi October 19, 2014 at 4:15 pm - Reply

    shut off the recorder? it’s nowadays office, so modern recorders deactivate when the tape is over. more important question is who rewinded the tape.

  9. Annie Frances May 31, 2016 at 10:13 pm - Reply

    Wow, these are clever riddles, especially the white hat one! It definitely makes me feel unintelligent for not knowing the answers, but I like the challenge. I think I’ll tell these riddles to my family tonight at dinner and see if they are smarter than me. Thanks for making me think and use my brain today!

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