Solution:

FORREST GUMP

Explanation:
FOR (four [o'clock]) + REST (person lying in bed) + GUMP ([bubble] gum + p)

Solution:

16

Explanation:
9 [1x1] squares
5 [2x2] squares
1 [4x4] square
1 [4x4] square

9 + 5 + 1 + 1 = 16 squares.

Solution:

It's shown in the picture below.

Solution:

Tank-5

Explanation:
This is a variation of Which Tank Will Fill First Brain Teaser but in this puzzle connection between tank-5 and tank-2 is closed so water will go into tank-5 from tank-1 but not go to tank-2. Therefore tank-5 will be filled first.

Solution:

7

Explanation:
8th is bald man head, check the video below.

Solution:

5

Explanation
First three equation in the image can be written as :
a) 3 BED = 30
b) 2 BED + BUS = 40
c) BED + 2 BUS+ 2 TROPHY = 60

From equation a)
BED = 10

From equation b)
BUS = 40 -20 =20

From equation c)
10 + 40 + 2 TROPHY = 60

TROPHY = 5

Solution:

No wheels which imply car is not moving :-)

Solution:

It can be done as shown below.

Solution:

It can be solved as shown.

Solution:

C

Explanation:
Check the image.