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?

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

Can you find the thief by just looking at the picture below?

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

You are trapped in a room with two doors. One leads to certain death and the other leads to freedom. You don't know which is which.
There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.
You can, however, ask one robot one question. The problem is one robot always tells the truth, the other always lies and you don't know which is which.
What is the question you ask?

Complete the table series riddle by finding the number that can replace "??".

2, 3, 5, 9, 17, _ What is the next number in the sequence?

What begins with T, ends with T, and has T in it?