Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

What has six faces, but does not wear makeup, has twenty-one eyes, but cannot see? What is it?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

What has no start, end, or centre?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?

Find a 9-digit number, which you will gradually round off starting with units, then tenth, hundred etc., until you get to the last numeral, which you do not round off. The rounding alternates (up, down, up ...). After rounding off 8 times, the final number is 500000000. The original number is commensurable by 6 and 7, all the numbers from 1 to 9 are used, and after rounding four times the sum of the not rounded numerals equals 24.

On a windy rainy night , I was driving in my car.
When i reach the bus stand , i see three people waiting for the bus.

1. An old lady who needs an immediate medical attention
2. My Best Friend
3. Girl whom i love from childhood

My car is a two seat, so can you tell me , what i have done in this situation ?

"That Restaurant always remains crowded. This is the reason why nobody goes there".

Can you find a flaw in this statement?

Using eight eights and addition only, can you make 1000?