What is the next number in this series?

4,12,84,3612....

In an office's desk, you find a unique method that shows the current day of the month. Two numbered cubes are used to depict the current date.

Can you find out the numbers on both the cubes so that each date can be mentioned using them?

Please note that you have to use both the cubes to display any date. Thus the 1st day must be represented by 01 and so on.

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?

Can you spot the hidden girl in the picture below?

Which Burger Is Different in below image?

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

Why Wine Glass Stem is so long?

Can you decipher the below rebus?

PBLUESAISNUERSES

How can you write nineteen in a manner that if we take out one, it becomes twenty?

What does the below rebus riddle means?