I have keys, but no locks and space, and no rooms. You can enter, but you can't go outside. What am I?

How can you physically stand behind your father while he is standing behind you?

Mr. and Mrs. Mustard have six daughters and each daughter has one brother. How many people are in the Mustard family?

What 8 letter-word can have a letter taken away and still make a word? Take another letter away and it still makes a word. Keep on doing that until you have one letter left. What is the word?

What can you keep after giving to someone?

You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

What can you catch, but not throw?

I have many teeth, but I cannot bite. What am I?

Can you name three consecutive days without using the words Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, or Sunday?

What English word has three consecutive double letters?

A woman shoots her husband, then holds him underwater for five minutes. Next, she hangs him. Right after, they enjoy a lovely dinner. Explain.