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

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

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 can you see in the middle of March and April that you can never see in any other month?

I speak without a mouth, and hear without ears. I have no-body, but I come alive with the wind. What am I?

Replace the question mark with the correct number in below Picture:

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

Today is John's birthday.
A year ago, John had five candles and he lit all the candles except the one at the last.
Now he is going to light all the candles.

How old is John Today?

(He is not five today.....)