It walks on 4 when its young, walks on 2 when it's older, and walks on 3 when its very old?

You can hear me, but you can't touch or see me.

What am I?

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

A Man gave one of his sons 10 cents and another son was given 15 cents. What time is it?
Hint: Figure out the relation between time and number, is not so easy..:)

I know a 5-digit number having a property that With a 1 after it, it is three times as large as it would be with a one before it.

Guess the number?

How many Watermelons are there in the below picture?

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

Why do Chinese men eat more rice than Japanese men do ?