What is full of holes but still holds water?

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?

Find the value of "?" in the ball picture Riddle below:

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Below toothpicks/matchsticks indicate the group of fishes moving from west to east direction. Can you make them move from east to west by just moving three toothpicks/matchsticks?

How many times in a given day, minutes and hour clock comes in a straight line ?

In the image given, you can find several triangles. Can you count them all?

Find the number of squares in the below picture

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Find the missing letter in the last circle logically in the given below picture.