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

What is 3/7 chicken, 2/3 cat and 2/4 goat?

what's the probability of getting a king or a queen from a pack of 52 cards?

What has hands, but can’t clap?

I am not a bull but I have horns.
I am not an ass but I have a pack saddle.
Wherever I go, I leave silver behind me.

Who am I?

Imagine a box with two cogwheels, one big with 24 teeth and one small with 8 teeth. The big one is firmly attached to the center of the box which means it does not turn or move while the small one rotates around the big one.

How many times do you think that the smaller wheel will turn compared to the box when it turns once around the big one?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside. The man said, "Oh! I am really sorry, I thought this was my room." He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man. What made her suspicious of that man? He might have been genuinely mistaken.

In four steps you need to move the word 'cold' From 'warm' by replacing one alphabet at a time such that every word formed at each step is acceptable in English Dictionary.