The more of this there is, the less you see. What is it?

How much will a 38° angle measure when looked at under a microscope that magnifies ten times?

A man stands on one side of a river, his dog on the other. The man calls his dog, who immediately crosses the river without getting wet and without using a bridge or a boat. How did the dog do it?

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?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

They are three errirs in this question. Can you find them?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Find the next number in the sequence

5 12 24 36 ?