When my father was 31 I was 8. Now he is twice as old as me. How old am I?

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 solve this picture maths equation?

What does this rebus puzzle means ?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What is the below Rebus indicate?

A famous swimmer can swim downstream in a lake in exactly 40 minutes with the lake current.
He can swim upstream in that lake in exactly 60 minutes against the lake current.
The length of the lake is 2 km.

How long he can cover the distance of one side at a still lake with no current?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

What number comes next in the series?

5 15 5 18 5 24 14 20 _

You are presented with three boxes. One of them has a red ball inside and the other two have a black ball inside each of them. You are asked to pick up the one with red ball and you pick one. Now, one of the other boxes is opened and it is found to have a black ball.

You are presented with a chance to change your box with the one that is left closed. Will you change your box? Why or why not?