John and his wife were living in a rural place. On a particular day, John's wife fell ill and he called the local doctor. When the doctor picked up, he said, "Doctor, my wife is ill. She might have appendicitis."

"This can't be possible! I took out her appendix two years ago myself," the doctor explained.

When diagnosed, John's wife was found to have appendicitis. How can this be possible?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

We have arranged an array of numbers below. What you have to do is use any kind of mathematical symbol you know excluding any symbol that contains a number like cube root. You can use any amount of symbols but you have to come up with a valid equation for all of them.

0 0 0 = 6
1 1 1 = 6
2 + 2 + 2 = 6
3 3 3 = 6
4 4 4 = 6
5 5 5 = 6
6 6 6 = 6
7 7 7 = 6
8 8 8 = 6
9 9 9 = 6

Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

You are in a room that has three switches and a closed door. The switches control three light bulbs on the other side of the door. Once you open the door, you may never touch the switches again. How can you definitively tell which switch is connected to each of the light bulbs?

What is both possible and impossible at the same time?

Solve below rebus puzzle?

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

How many points are there on the globe where, by walking one mile south, then one mile east and then one mile north, you would reach the place where you started?