Alex opened 24 presents
Jonah opened 8 presents
Clara opened 1 present

Can you find out how many presents were opened by Candy?

Replace the question mark with the correct number.

If a shopkeeper can only place the weights on one side of the common balance. For example, if he has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names of the weights you will need to measure all weights from 1 to 1000? This is a fairly simple problem and very easy to prove also.

What number comes next in this sequence:
7 8 5 5 3 4 4 _

A man says, "Brothers and sisters, have I none, but that man's father is my father's son." Who is that man?

What number should come in place of the question mark below?

Which is heavier: a ton of bricks or a ton of feathers?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

You walk into a creepy house by yourself. There is no electricity, plumbing, or ventilation. Inside you notice 3 doors with numbers on them. Once you open the doors you will die a particular way. Door No.1 You’ll be eaten by a lion who is hungry. Door No.2 You’ll be stabbed to death. Door No.3 There is an electric chair waiting for you. Which door do you pick?

Find The Missing Number In the Sequence.
6 25 64 ? 32 1