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

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

In a boat, the father of a sailor's son is sitting with the son of the sailor. However, the sailor is not present on the boat.

Can this even be possible?

I have feet, but no legs. Which animal Am I?

At a bar, three friends, Mr Green, Mr Red and Mr Blue, were having a drink. One man was wearing a red suit; one a green suit; and the other a blue suit. 'Have you noticed,' said the man in the blue suit, 'that although our suits have colours corresponding to our names, not one of us is wearing a suit that matches our own names?' Mr Red looked at the other two and said, 'You're absolutely correct. What colour suit is each man wearing?

There is an English word that can be used up to four times in a row without modifying the spelling and form a valid grammatical sentence.

Do you know what word is that?

Two in a corner, one in a room, zero in a house, but one in a shelter. What am I?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

Why is the Hole below a Lock?