Count the squares in the matchstick puzzle below?

Find the hidden panda in the image below.

Why do we preferably have round manhole covers and not square ones?

How can you drop a raw egg from a height onto a concrete floor without cracking it?

There are three boxes. One is labeled "APPLES" another is labeled "ORANGES". The last one is labeled "APPLES AND ORANGES". You know that each is labeled incorrectly. You may ask me to pick one fruit from one box which you choose.

How can you label the boxes correctly?

Jack was having a candle light dinner with his girlfriend. Suddenly a cold gush of wind entered through the open window and three of the ten candles were extinguished. Assuming that none of the other candles were extinguished.

How many candles are they left with in the end ?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

He does not have any heart but still, He manages to live.
If you kill him, you will eventually die but yet you kill him.
He cannot run, who is He?

Below, you will find the mathematical proof that 10 equals 9.99999?. But is that possible or there is something wrong about it? Can you find the error?

x = 9.999999...
10x = 99.999999...
10x - x = 90
9x = 90
x = 10

Which of the following words don't belong in the group and why?
CORSET, COSTER, SECTOR, ESCORT, COURTS