A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

What is full of holes but still holds water?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Can you find the mistake in the below statement?

A man is found hanging dead from the ceiling of a room. The room’s dimensions are 15 x 15 x 15. The man is only 6ft tall and the rope was only 2ft long. There are no windows and only one door to the room. The door is bolted shut from the inside, and a puddle of water is under the man. How did he kill himself?

You are given four tennis balls and asked to arrange those balls in a manner that the distance between each one of them is exactly equal. How will you do it?

If two's company, and three's a crowd, then whats four and five ?

I am Huge on Sunday and Saturday.
I am small from Tuesday to Thursday.
I do not exist on Monday and Friday.
Who am I?

Find The Next Number in the series:

12 13 15 17 111 113 117 119 123 ?

What do you call a fish without an eye?