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?

Take away the whole and some still remain. What is it?

How many words can a pen with half refill write?

'S' refers to the number of seconds in a day and 'H' refers to the number of hours in ten years. Which quantity out of these two is greater?

You order chicken wings at KFC in the boxes of 6, 9 and 20. What is the largest number of wings that you cannot obtain by buying in any combination of the boxes?

How many times do a clock's hands overlap in a day ?

John named his first son Alpha, second Beta, third Charlie and fourth Delta. What is the fifth son's name?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

The sum of a mother, her baby and her dog's weight is 170 Kg. How much does the baby weigh if the mother weighs 100 kg more than the combined weight of the baby and the dog, and the dog weighs 60 per cent less than the baby?