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

Krish is 45 years old and his mother Crishtina is 73 years old.

Can you find out how many years ago, his mother was three times his age?

Using the clues below, what four numbers am I thinking of?

The sum of all the numbers is 31.
One number is odd.
The highest number minus the lowest number is 7.
If you subtract the middle two numbers, it equals two.
There are no duplicate numbers.

What do you get if you add 2 to 100 four times?

In the picture given below, can you find out which digit will take place of the question mark?

When does a USA Potato change its nationality?

Can you name any English verb that becomes its past tense by simply rearranging the alphabets ?

If eleven plus two equals one, what does nine plus five equal?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

A girl rode into a tourist spot out of the city on Thursday. She loved the place and decided to stay for a few days. She stayed for four days and then she left for back home on Thursday.

How can this be possible?