Can you find out the remainder when 3^300 is divided by 5?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

Which letter of the alphabet has the most water?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

An exterior architect is asked by a builder to plant seven trees in a manner that there are exactly six rows of trees in a straight line and each row has three trees in particular.

How will he do it?

A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

Can you find the hidden animal in the picture below?

How many times can you subtract the number 5 from 25?

Can you decipher these quotes by Albert Einstein?
Blf xzm mvevi hloev z kilyovn lm gsv ovevo lm dsrxs rg dzh xivzgvw.

What two things can you never eat for breakfast?