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

Replace the question mark with the correct number.

Andrew sees a very rare bird named "Ruppell's vulture". Soon Andrew was dead. Can you explain the mystery, Mr. Sherlock?

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

Different lights make me strange by changing me into different sizes. What am I?

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

There is a basket full of hats. Three are white and two are black. Three men, Tom, Tim, and Jim, each take a hat out of the basket and put it on their heads without seeing the hat they selected or the hats the other men selected. The men arrange themselves so Tom can see Tim and Jim’s hats, Tim can see Jim’s hat, and Jim can’t see anyone’s hat. Tom is asked what color his hat is and he says he doesn’t know. Tim is asked the same question, and he also doesn’t know. Finally, Jim is asked the question, and he does know. What colour is his hat?

Guess the hidden movie name?

What has many keys but can’t open a single lock?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?