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

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

A seven-year-old kid challenged his classmates that he can make the number one disappear by adding something to it.

How can he do that?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

What has to be broken before you can use it?

What is full of holes but still holds water?

A donkey is behind another donkey
I'm behind that second donkey
But there is a whole nation behind me

It is a murder you can describe in a word.

If it took eight men ten hours to build a wall, how long would it take four men to build it?

You can find some missing letters in the picture. By placing two particular letters in the spaces, you can form a nine lettered word beginning from one of the corners and going clockwise direction to the middle. Can you find out the letters and the word?

There’s a one-story house in which everything is yellow. Yellow walls, yellow doors, yellow furniture. What colour are the stairs?