Can you make four (4) nines (9) equal 100?

Why did the Girl throw the butter out of the window?

Sherlock breaks into a crime scene. The victim is the owner who is slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table. On pressing the play button, Sherlock hears the message 'I have committed sins in my life and now I offer my soul to the great Lord' and followed a gunshot Sherlock smiles and informed the police that's its a murder.

Why did he think so?

I never stop running even when I standstill. If I am formed by joining two identical bodies together, can you guess who I am?

What can you see in the middle of March and April that you can never see in any other month?

What does an Island and the letter T have in common?

In the Chess Board picture below white army is arranged. You need to add a black army on the board such that no piece is under any threat.
Note: Army comprised of 1 king, 1 queen, 2 rooks, 2 bishops, 2 knights, and 8 pawns.

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

The answer I give is yes, but what I mean is no. What was the question?

Can you find the missing piece of the Porsche?