Solution:

Solution can be verified from the picture below.

Solution:

As shown below, we can make equation as 6 = 6 = 6.

Solution:

Both will rotate at Same speed.

Explanation:
Gears of the same size will always rotate at constant speeds despite any smaller or larger gears in between them.

Solution:

We just added four matchsticks as shown in below picture.

Solution:

Solution is shown below,

Solution:

Look at the stripes at tiger's body. It's written there.

Solution:

I am surrounded by the enemies.

Solution:

35

Explanation
4 : 1/2 X 1/2 matchsticks squares
17: 1X1 matchsticks squares
9 : 2X2 matchsticks squares
4 : 3X3 matchsticks squares
1 : 4X4 matchsticks squares
================
35

Solution:

Over My Dead Body

Solution:

11