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

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Solve below rebus puzzle?

'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?

John was born on March 5, 1970, in Delhi, India. Jacob was born 25 days before John. The year when they took birth, Republic Day fell on Monday.

Can you find out on what day was Jacob born?

Jack have ten pairs of black socks, eight pairs of white socks and seven pairs of green socks. Everything is mixed in a draw. As there is no light he were not able to identify the colour of the socks. How many of the socks did he want to take to match one pair

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

What does this rebus riddle means ?

There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?