What occurs twice in a week, once in a year but never in a day?

Identify the hidden meaning behind this picture?

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

A boy was at a carnival and went to a booth where a man said to the boy, "If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50." The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

A bomb exploded in a room full of married couples and no one died. How?

You can take four of the five letters out of this word, but the pronunciation never changes. What is the word?

Prove that twice of ten is the same as twice of eleven.

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91

I am the one who remains awake when you sleep. But I need to rest when you awake. Who Am I?

10+10 and 11+11 can give you the same answer.

Explain how?