What always comes into a house through the keyhole?

It has five wheels, though often think four, You cannot use it without that one more, You can put things in it, you can strap things on top, You can't find it in the market, but you can still go shop. What is it?

A cat had three kittens: Snophy, Topsy and Jorden. What was the mother's name?

I had an infinite supply of water and 5 litres and 3 litres jars.

How would you measure exactly 4 litres in the least number of steps?

There is a brick of gold and a brick of iron in a boat (both 10-inch blocks), if they are both dropped into the water which will make the water level higher?

Find the smallest sentence with all the English alphabet.

Which alphabet is a part of our body?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

What Adam and Eve do not have but the rest of the people have?

Given that

(78)^9 = 6
And (69)^4 = 11

Can you find out

(99)^2 =?

(Note: This is Logical, not Mathematical)