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

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

It is a six-letter word.
The first four letters are me.
The second and last letters are the same.
The fourth second and last letter is payment.

Who is it?

Look at the picture and find out which square is not linked with any of the other squares.

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

The following question it puts forth you:

25 - 55 + (85 + 65) = ?

Then, you are told that even though you might think it's wrong, the correct answer is actually 5!

Whats your reaction to it? How can this be true?

In the image below, can you find the value of an angle(y)

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?

In a jungle where there are no street lights or any other artificial source of lights, I notice a black snake crossing the road.
How did I get sight of the snake?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?