Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

Who is that with a neck and no head, two arms and no hands? What is it?

How is a fly different from a mosquito?

What goes up but never comes down?

What seven-letter word has hundreds of letters in it?

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

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?

What is the next shape from answers A, B, C, and D figure?

How do you go from 98 to 720 using just one letter?