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

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Which city is three-fifths chick two third cat and 50% goat?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

I am a type of word that is spelt incorrectly or used differently, on purpose for humour. What am I?
Hint 1: You can find me in a joke.
Hint 2: I am a play on words.

A finger goes in me. You fiddle with me when you're bored. The best man always has me first. What am I?

Find the mistake in the below maths equations

A = 2
A(A-1) = 2(A-1)
A2-A = 2A-2
A2-2A = A-2
A(A-2) = A-2
A = 1

Which alphabet is a part of our body?