Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

What country can make you shiver?

A dead body is found outside a multi-story multinational company. The case is reported and a homicide detective is called on the crime scene.

He looks at the body and then towards the building. From the position of the body, it is evident that the victim committed suicide. He goes to the first floor of the building and then walks in the direction of the dead body, opens the window and toss a coin in the air.

He goes to second floor and again repeats the process. He keeps doing this till he is done on all the floors. Then he returns back to the floor and tells his team that it is a murder.

How in heaven did he deduce that?

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?

Find out the number of circles in the given picture having Illusion

What is at the end of a rainbow?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?