Find the next number in the series?
2, 12, 36, 80, 150, 252, 392, _ ?

What brings you down but never up?

John can fit six large chocolate boxes or nine small chocolate boxes into a carton. How many cartons will he require to put sixty-six chocolate boxes into?

How many runs at maximum can a batsman score in a normal one-day match? Consider the fact that the conditions are ideal and there are no No Balls, no Wide Balls and no Extras in that match.

A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

If you say my name, I will no longer exist. What am I?

What do you call a fish without an eye?

Which digit occurred maximum times between the number 1 and 1000?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

John’s parents have three sons: Snap, Crackle, and what’s the name of the third son?