Solution:

16

Watch Video for more explanation.

Solution:

Social Distancing
Wear Mask
Clean Your hands

Solution:

30.

For Explanation, watch video

Solution:

It can be done as shown in the picture below. You can also watch video For more explanation.

Solution:

The Cat is circled below in the picture.

Solution:

Chilli no. 4.

Watch the video for an explanation.

Solution:

Add two squares as shown in the picture below.

Solution:

15

Explanation:
3drink = 30 ....... EquationA
1drink + 2 burger = 20 ....... EquationB
burger + 4 fries = 9 ....... EquationC
burger + fries * drink = ?

From EquationA
drink = 10

From EquationB
burger = (20-10)/2 = 5

From EquationC
fries = (9-5)/4 = 1

Hence
burger + fries * drink = 5 + 1 * 10 = 5 + 10 = 15

Solution:

Scooter B

Solution:

Center of gravity.