why number 8549176320 is one of a kind?

On 26-01-2022, Juli was murdered at her house in a city in India in the afternoon. There were three suspects in the murder and the following are the statements that were given by them:

John: I visited my village that day.
Jacob: I was out to deposit my house tax in the municipality office at that time.
Jonny: I was at a friend's place having lunch at that time.

Can you find out who is the murderer?

Replace the question mark with the number below given a simple math problem.

Can you count the number of triangles in the given picture?

Something Extraordinary happened on May 6th 19778 at 12:34am what was that?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

I have teeth but i don't bite. Who Am I ?

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

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?

John was gifted a new Hayabusa. He drove x miles at 55mph. Then he drove x+20 miles at 40mps. He drove his bike for 100 minutes. How much distance did he travel?