Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

A professor thinks of two consecutive numbers between 1 and 10.
'A' knows the 1st number and 'B' knows the second number

A: I do not know your number.
B: Nor do I know your number.
A: Now I know.

What are the four solutions for this?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

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

While sitting in the Car, John suddenly finds that one of the wheels was missing. John noticed that a killer is approaching towards him. John cannot get out of the car.

How will John escape?

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

Can you start the fire using two pieces of wood?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

In the figure that has been attached to this question, each digit represents a digit. The similar letters carry the same integer value. Can you expose the original digits?