The more of this there is, the less you see. What is it?

Can you count the number of quadrilaterals in the picture below?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

You have two buckets of 11 liters and 6 litres.
How can you measure exactly 8 litres?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

Without looking at a calendar, within a minute name, a boy's name using 5 consecutive 1st letters of 5 consecutive months

Can you calculate the probability of getting a sum of six when a dice is thrown twice?

Move three sticks of the spiral below to form a square.

What is full of holes but still holds water?

There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?