If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

Can you decipher the below rebus?

PBLUESAISNUERSES

What Adam and Eve do not have but the rest of the people have?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?

Given below is simple addition with a defined pattern pattern:
7 + 7 = 2
8 + 8 = 4
8 + 5 = 1
6 + 9 = 3
10 + 11 = 9

Can you analyze the pattern and find out the answer for:

4 + 9 = ?

How many triangles can you find in this given picture?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

Who is generally closer to the kids, mom or dad?

(it's a funny riddle)

What kind of tree can you carry in your hand?

If you go to the movies and you're paying, is it cheaper to take one friend to the movies twice, or two friends to the movies at the same time?