Solution:

It encircled in the picture below.

Solution:

No glass will ever fill.

Explanation:
Outlet to Glass-1 & 5 is blocked at the initial point, so they won't fill.
Outlet to Glass-2 is blocked at the endpoint, so it won't fill.
Outlet to Glass-3, 4 & 7 is also blocked in the middle, so they won't fill.
Nothing is connected to Glass-6.

Solution:

The spiral B consists of two parts.

Solution:

The title of the book is upside down as the bookmarker is always on top.

Solution:

Three hidden words are
1. Bloom
2. Garden
3. Farm

Solution:

2.

Rest all are the reflection of two girls in the mirror.

Solution:

Piece 2 is the broken piece of the bone.

Solution:

The three hidden words are

1. Cloud
2. Storm
3. Damp

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.