The more it dries, the wetter it becomes. Can you tell what it is?

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?

Replace The Question Mark Below With the Correct Number.

2 {38} 3
4 {1524} 5
6 {3548} 7
8 {????} 9

Name the three-letter word that can complete the below words?

A) L O _ _ _ E
B) E D U _ _ _ E
C) _ _ _ E R
D) _ _ _ T L E

The horse jumps over the king.
Strangely there is absolutely no scratch on him.

Can anyone explain, how is this possible?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

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?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?

If eleven plus two equals one, what does nine plus five equal?

I am sure no one can have two things for dinner. what are they?