Can you find a rabbit in the given picture?

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?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

Things are just as they seem, right? Well, check again.
Can you count the number of tigers in this picture ?

A man lives on the fifteenth floor of an apartment building. Every morning he takes the elevator down to the lobby and leaves the building. In the evening, he gets into the elevator, and, if there is someone else in the elevator, or if it was raining that day, he goes back to his floor directly. Otherwise, he goes to the tenth floor and walks up five flights of stairs to his apartment. Can you explain why he does this?

Count the number of triangles in the given picture.

There was a strange boy who was born before his father. How can this be possible?

I am quite hot but become too cold if you remove the first two letters. What am I?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?