With the help clues provided in the image, can you find the 5 digit key?

We have four gears with below features=> Both Gear A and D has 60 teeth=> Gear B has 40 teeth=> Gear C has 20 teeth=> Every two minutes, Gear B makes 25 full turns.What is the relative speed of Gear A and Gear B?

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

What does this rebus means ?

What word does this rebus represent?

meta meta
meta meta

It begins where the time ends.
Its second is an expression of surprise.
Its third is a question.
Its fourth is urinate.
It ends with a drink.

Which country it is?

A person was killed at a house party. When the police arrive, there are six people present in the house who are the friends of the victim. The name of the friends is Rohit, Aman, Nick, Gagan, and Randy.

Near the dead body, they find a few numbers written with blood by the victim on the floor. The numbers are 8, 5, 4, and 11.

The police arrests one of the friends for the murder. Whom did they arrest and why?

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

Who is He ?

A man is found unconscious in front of a store at two in the morning. His head is bleeding and there’s a brick laying next to him. When the police arrive, they carry the man to jail. Why did they arrest him?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?