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?

What is 3/7 chicken, 2/3 cat and 2/4 goat?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Solve the rebus riddle in the picture below.

Remove two matchsticks to make the below equation correct.

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

10+10 and 11+11 can give you the same answer.

Explain how?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Why is a river so rich ?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?