Rectify the following equality 101 - 102 = 1 by moving just one digit.

How many times can you subtract the number two from the number fifty?

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

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.

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

The square root of number 121 is "11". What is the square root of the number "12345678987654321."?

My thunder comes before the lightning; my lightning comes before clouds; my rain dries all the land it touches. What am I?

A mathematician couple was having a Frappuccino in Starbucks sitting opposite to each other. Suddenly the guy noticed the text written on the paper in front of them and exclaimed that it was wrong. The girl denied it and said it is appropriate. Both are correct. What is written on the paper?

What number should come in place of the question mark below?

There was a minor accident with a doctor's son but the doctor noticed no major injury. After the treatment, the father of that doctors son is sitting with the son of the doctor without the doctor being in the room.

How can this be possible?