why number 8549176320 is one of a kind?

What does this rebus puzzle means ?

A bag contains 64 balls of eight different colours. There are eight of each colour (including red). What is the least number you would have to pick, without looking, to be sure of selecting 3 red balls?

People put me on the table and cut me but do not eat me. What am I?

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?

Forwards I am heavy, backward I am not. What am I?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

I have nine bottles of wine and one of the nine bottles is poisoned.
I need to find the poisoned bottle with two facts
(1) Poison is deadly, only a sip will cost death
(2) I have two mice to do so.

How should I do it?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

Can you write down eight eights so that they add up to one thousand?