How many words can a pen with half refill write?

Can you count the number of triangles inside a triangle?

You are playing as white and given four rooks to checkmate the black king in four moves with the following rules 1. You can place one rook every move and ensure the black king should be in check position.2. After four moves the black king should be in the checkmate position.

There is a jar in which there are two types of candies.
20 blueberries and 16 strawberries. You perform the following steps:
1) You take out two candies.
2) If the two candies are of the same flavour, you add a blueberry one otherwise, you add the strawberry one.

You repeat these two steps till there is just one candy remaining in the jar. Which flavoured candy will be left?

Why did Buffon take the goal with him after every Juventus match?

What is the riddle which can be asked all day with a different correct answer each time.

Replace the question mark with the number below given a simple math problem.

You throw me out when you want to use me and you take me in when you don't want to use me.

Who Am I?

Make a sentence consisting of three words that have the whole alphabet.

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?