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

How many words can a quill made with the feather of a pigeon write with a 100ml bottle of black ink?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

Sally lives in a place where six months of the year is mild summer and the temperature drops significantly the other six months. She owns a lake where there is a small island. She wants to build a house on the island and needs to get materials there. She doesn’t have a boat, plane, or anything to transport them to the island. How does Sally solve this problem?

What can you catch but never throw?

What can you see in the middle of March and April that you can never see in any other month?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Can you find out a way through which you can make five squares out of the given figure by moving just six match sticks?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

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?