What word is pronounced the same if you take away four of its five letters?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Can you spot the man between the coffee bean in the picture below ?

If 21x = 79x, what is the value of x?

A lion and its tamer are standing inside a cage that measures 1 unit in radius. Both of them can effortlessly run at the speed of 1 unit maximum.

1) Suppose the lion is hungry, will he be able to eat up the tamer?
2) If yes, how long can the tamer survive?

Replace the question mark with the correct number below.

There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

Can you spot what's wrong with the following sentence?

PETER WAS ANGRY AT
HIMSELF BECAUSE HE
ACCIDENTALLY LEFT THE
THE KEYS TO HIS CAR
AT HIS FRIEND'S HOUSE.

1 + 9 + 8 = ?
considering, 28 + 8 + 92 = 10