There was an aeroplane crash, every single person died, but two people survived. How is this possible?

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

Can you name some countries which do not have the alphabet 'A' in them?

If,

6 / 7 = 2
3 / 9 = 7
8 / 2 = 6

Then

4 / 5 = ?

Which three-digit number, made of consecutive digits, like 567, is 2 less than a cube and 2 more than a square?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

What is the next number in the series?

15 29 56 108 208 ?

Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?