Solution:

Piece 2 is the broken piece of the bone.

Solution:

The three hidden words are

1. Cloud
2. Storm
3. Damp

Solution:

The Mirror Images Of the two women are swapped.

Solution:

The man has 6 fingers in each hand. This is a mind diversion riddle where the focus of the reader is on red dots

Solution:

There are 14 3's in the dialer screen.

Solution:

Door number-1.

The Symbols on the doors are actually number + mirror images of the number.

Solution:

The first man is the assassin as he is coming from below.

Solution:

The lady in the red.
She spends lots of money on food which is much more than a one-person need.

Solution:

The Waiter

Holding a tray is a static job while serving dishes and drinks is their main work and hence the waiter is most likely the left-handed person.

Solution:

19