Which part of London exists in France as well ?

What does below chemistry rebus means?

What kind of tree can you carry in your hand?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

I am not alive, but I grow; I don't have lungs, but I need air; I don't have a mouth, but water kills me. What am I?

What has a ring but no finger?

Prove that twice of ten is the same as twice of eleven.

What begins with T, ends with T, and has T in it?