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

Below rebus represent famous DiCaprio movie. Can you name it?

A and B have a certain number of chocolates with them. If B gives one chocolate to A, they will have an equal number of chocolates. But if A gives one chocolate to B, then A will be left with half the number of chocolates that B has.

Can you find out the number of chocolates they have right now?

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?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

Solve below rebus puzzle?

There are are five things wrong with this sentence; only geniuses will be able to to spot all of the mitstakes

What question can you never answer yes to?

Take one out and scratch my head, I am now black but once was red. What am I?

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?