What does this rebus means ?

PROG WORKRESS

Two old friends, Jack and Jill, meet after a long time, and discussing as:

Jack: Hey, how are you, man?

Bill: Not bad, got married and I have three kids now.

Jack: That's awesome. How old are they?

Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Jack: Cool..But I still don't know.

Bill: My eldest kid just started taking piano lessons.

Jack: Oh, now I get it.

How old are Bill's kids?

What happened when the wheel was invented?

Count the number of triangles in the picture below:

Can you identify if it's a murder or a suicide ?

Decode the below four famous ciphers:

8P of the SS
1M of the E
1S of the SS
60M in 1H

There are two words one resembles the "state of rest" and the other is related to "writing/reading material".

Can you name these two words which also sound similar?

In the given figure, you can see that four match sticks are used to form a square. Can you form five squares by using six matches?

Why despite killing dozens of people Charley and Wilma were not punished?

Who has married many women but was never married?