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

What work can one never finish?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

What am I?

I look flat, but I am deep. Hidden realms I shelter. Lives I take, but the food I offer. At times I am beautiful. I can be calm, angry, and turbulent. I have no heart but offer pleasure as well as death. No man can own me, yet I encompass what all men must have. What am I?

A Shopkeeper collects 71 rupees in the form of 20 paisa and 25 paisa.
He collects a total of 324 coins.

Can you tell me how many number of 20-paisa and 25-paisa he got?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

12345 a famous South Indian actor
567 is a path in jumbled form
8 & 10 are same letters
9 is one among the first six alphabets.
WHO AM I?