Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

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?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Can you solve the tricky chess rebus puzzle below by ciphering the hidden meaning?

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

Which is the rope you never skip with?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

Replace the question mark with the correct number.

See the given image carefully. What you have to do is move the blue checkers in the position of the black checkers and vice versa. You are only allowed to move the checker to an adjacent empty space. Do it in the least possible moves.