What word begins and ends with an E, but has only one letter?

While going to your grandmother's house, you counted Twenty houses on the right side. While returning back to your home, you counted Twenty houses on the left side.

How many houses are there between your home and your grandmother's home?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?

The dirtier I get, the whiter I look. Who am I?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

O_er_t_o_

Complete the missing letters of the given word.

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

1 rabbit saw 9 elephants while going to the river. Every elephant saw 3 monkeys going toward the river. Each monkey had 1 parrot in each hand. How many animals are going towards the river?

Always in you, Sometimes on you;

If I surround you, I can kill you.

What am I?

What you cannot hold but it is yours?