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?

How many bananas can you eat if your stomach is empty?

What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

What is next number in the pattern below:

131 517 192 123 ?

Complete the table series riddle by finding the number that can replace "??".

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

A non-stop marathon is the shared favourite sport of three brothers.

*The oldest one is fat and short and trudges slowly on.
*The middle brother's tall and slim and keeps a steady pace.
*The youngest runs just like the wind, speeding through the race.

"He is young in years, we let him run!" the other two brothers explained, "'because though he is surely number one, he is second, in a way." Why is it?

The cream is heavier than Milk. True or False?

What is always in front of you but can’t be seen?

If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?