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

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Which is the smallest number that you can write using all the vowels exactly once?

Find the last number in the series below:

voN luJ yaM raM ---

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

What is the last thing you take off before bed?

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

Can you solve the below tricky visual equation?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school. The principal asks the first student to go to every locker and open it. Then he has the second student go to every second locker and close it. The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it. The fourth student does this to every fourth locker, and so on. After the process is completed with the thousandth student, how many lockers are open?