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

Find the missing letter in the last circle logically in the given below picture.

A plane crashed between the border of Mexico and America. Where do you bury the survivors?

What number do you get when you multiply all of the numbers on a telephone's number pad?

Can you find out the remainder when 3^300 is divided by 5?

Why do we preferably have round manhole covers and not square ones?

Name a key which is hardest to turn.

A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

What Adam and Eve do not have but the rest of the people have?