What is the next number in this series?

4,12,84,3612....

What does this rebus means ?

PROG WORKRESS

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

If eleven plus two equals one, what does nine plus five equal?

In one of the popular batman series movie "Batman Forever", there was a riddle that goes like "Tear me off and then scratch my head and I was red then and now I am back. Who am I?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

How high do you have to count before you use the letter “a” in the English spelling of the whole number?

John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

The Federal bank of London is abducted by the robbers. The head of the robbers asked the cashier to empty their money vault to them and when suddenly cashier got a call from her father. To avoid any suspicion, the robber asked the cashier to pick the call and reply her father in the shortest manner possible.

The cashier told her father "Is there an emergency father, Call me when you are free and I will help you in your furnishing" and then the cashier hung up the phone.

After 10 minutes, police arrived at the crime scene.

How did the police know about the robbery?