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

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

Next Number in the Series,

5, 16, 49, 104, ?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

Can you count the number of matches in the picture below ?

What is the next number in the series?

15 29 56 108 208 ?

Why is Saturday stronger than Monday?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?

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

Whats the next number in the below number sequence pattern.