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

When is the top of a mountain similar to a savings account?

Nine marbles are arranged in the image below. Can you slide two marbles to form a square?

It comprises roots which nobody sees,
Much taller than those trees,
Up and up it goes,
Still it never grows?

If I put in one canary per cage, I have one bird too many. If I put in two canaries per cage, I have one cage too many. How many cages and canaries do I have?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

What do you get if you add 2 to 100 four times?

I was speeding and ran through a stop sign, yet two traffic officers who were there do nothing about it.

why?

What two things can you never eat for breakfast?

A farmer went to a market and bought a wolf, a goat, and a cabbage. On his way home, the farmer came to the bank of a river and rented a boat. But crossing the river by boat, the farmer could carry only himself and a single one of his purchases: the wolf, the goat, or the cabbage. If left unattended together, the wolf would eat the goat, or the goat would eat the cabbage. The farmer’s challenge was to carry himself and his purchases to the far bank of the river, leaving each purchase intact. How did he do it?