John gave half of the apples he had plus one more to Jacob. He gave half of the remaining ones plus one more to James. Now, John was left with just one apple.

Can you find out how many did he have in the beginning?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

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

why number 8549176320 is one of a kind?

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

They are three errirs in this question. Can you find them?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

You walk into a room and see a bed. On the bed, there are two dogs, five cats, a giraffe, six cows, and a goose. There are also three doves flying above the bed. How many legs are on the floor?

What is so fragile that saying its name breaks it?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?