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?

If an electric train is travelling south, then which way is the smoke going?

Solve the puzzle by telling what does below picture means.

In a certain bank, a man deposits a certain amount. According to the bank policies, the amount will be doubled up in a year but as the service charge, they will also deduct Rs. 65 by the end of every year.

If after the 6th year, the amount becomes 0, what do you think is the original amount he deposited in the bank?

How many times in a given day, minutes and hour clock comes in a straight line ?

What Time Should the last watch show in the below figure?

81 x 9 = 801. What must you do to make the this equation true?

What is the end of everything?

Can you place three balls such that the equation shown in the picture holds true?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?