In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly.
How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

Who has married many women but was never married?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.

Can you find their ages?

It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

A bomb exploded in a room full of married couples and no one died. How?

You have a 12 liters jug full of water. You have two empty 8 liters and 5 liters jug. How can you divide the water into two equal parts using these jugs?

how come the second man dies?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?