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

What Time Should the last watch show in the below figure?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

To attend world science seminar, A famous chemist from Mexico visit
London. In the lab, the scientist was killed and his six assistants were under suspicion of killing the chemist.
Name of six assistants: Austin, Wayne, Dege, Oscaru, Lingard, and Rojo.
He left a note "76-20-44 79-16-22-7"

A local detective Jack was called to solve the case,

After reading the note, Jack instantly asked the police to arrest the murderers.

Who are the murderers?

What has hands, but can’t clap?

What does this mean?

CCCCCCC

You are in a room with no metal objects except for two iron rods. Only one of them is a magnet.
How can you identify which one is a magnet?

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

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

You board a train. The train will have to enter a tunnel soon. You are claustrophobic. Which place is the best for you to sit?