By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

John can place six large boxes or nine small boxes into a carton.

Can you find out in how many cartons can he place sixty-six boxes in total?

What can you hold in your right hand, but never in your left hand?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

Eight of us go fourth, not back, to protect our king from an attack. What are we?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

A word I know has six letters it contains, remove one letter and 12 remain. What is it?

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?

There is an exact a week gap between Christmas and New Year. Hence, It is obvious that the new year that comes right after Christmas comes on the same day of the week.

A Strange thing happened in the Year 1777. Christmas occurs on Wednesday and New Year on Monday. How is that possible?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?