If two's company, and three's a crowd, then whats four and five ?

Two old friends, Jack and Bill, meet after a long time.

Three kids
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?

A red house is made out of red bricks. A yellow house is made out of yellow bricks. And, a blue house is made out of blue bricks. So, what is a greenhouse made of?

What occurs twice in a week, once in a year but never in a day?

Replace the question mark with the correct number below.

Remove two matchsticks to make the below equation correct.

What am I?

What Deficiency does the below rebus represent?

VIT_MIN

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?