What has one letter and starts with an E?

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

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?

You enter your friend's room. He is not in his room. Although you see that on the bed there are two dogs, five cats, two giraffes and three pigs. Also, a couple of chickens and ducks are flying in the room.

Calculate the number of legs standing on the floor.

What is the riddle which can be asked all day with a different correct answer each time.

How can you take 2 from 5 and leave 4?

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?

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

If you say my name, I will no longer exist. What am I?

What has to be broken before you can use it?