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

2, 3, 5, 9, 17, _ What is the next number in the sequence?

Why is Saturday stronger than Monday?

You need to move three matchsticks to form three squares. Can you do it?

What does this Rebus Picture means ?

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

Which five letter word can be added at the end of below word to form a
valid word?

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They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

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?

There is a box in which distinct numbered balls have been kept. You have to pick two balls randomly from the lot.

If someone is offering you a 2 to 1 odds that the numbers will be relatively prime, for example
If the balls you picked had the numbers 6 and 13, you lose $1.
If the balls you picked had the numbers 5 and 25, you win $2.

Will you accept that bet?