What do you get if you add 2 to 100 four times?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

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

Which letter of the alphabet has the most water?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

What do you call a fish without an eye?

Two-person want to cross a river. Only one boat is present on the riverside that can carry only one person at a time.

However, they still manage to cross the river. How is it possible?

How is the moon similar to a dollar?

There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

What has a bottom at the top?