John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

If six children and two dogs were under an umbrella, how come none of them got wet?

What can jump higher than a building?

A man looks at a painting in a museum and says, “Brothers and sisters I have none, but that man’s father is my father’s son.” Who is in the painting?

How is the moon similar to a dollar?

What is the word or phrase below?
R | E | A | D

Prove that the below maths equation is true.

8 + 8 = 91

What is the next number in this matchsticks series riddle?

Find three numbers such that

* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.