What does this Rebus Picture means ?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

What number divided by 4 is the same as that number minus 4?

Can you move 2 matchsticks to form four equal sized squares.

In the image below, can you find the value of an angle(y)

You need to move three matchsticks to form three squares. Can you do it?

A man died and leaves Rs.10,000 in his will. There are 6 beneficiaries- his 3 sons and their wives. The 3 wives receive Rs.3960 of which Priyanka gets Rs.100 more than Tanu and Neha gets Rs.100 more than Priyanka.
Pramod gets twice as much as his wife, Tushar gets the same as his wife, and Prashant gets 50% more than his wife.

Who is married to whom?

Replace the question mark with the correct number below.

Decode below rebus
D
N
A
T
S , D

Count the number of triangles in the given picture.