Replace the question mark with the correct number.

What is the coolest letter in the alphabet?

Most people think of me as money. But when they find me in the water, they won’t get any money out of me. What am I?

What is black when you buy it, red when you use it, and gray when you throw it away?

John asked Jack, "The time right now is 7 pm. Can you tell me what will be the time 23, 999, 995 hours later ?"

While Bella does not know the answer, do you ?

In the given picture, in how many ways can you read the word "Tiger"?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

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

A crime was committed at baker street. Ibrahim Dakota who was shot in the stomach was the main suspect. Sherlock questioned the suspect. The conversation started as:
Sherlock: What's your story, Ibrahim?
Ibrahim: I was walking around baker street and suddenly a man from the back shot me. I ran as fast as I could to save my life".
Sherlock: That is enough (and ask the police to arrest him).

Why does Sherlock think he is the murderer?