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

Prove that the below maths equation is true.

8 + 8 = 91

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Which tank will fill first?

John was piloting a plane behind a car but was never able to overtake it. Why?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

A man wants to cross the pit of fire which is 25 feet in length and he has 2 planks(fire resistant) 19 feet in length. How can he cross the pit of fire alive?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

P is the father of Q and S is the son of R. T is the brother of P and has a daughter U. If R is the sister of P, then what is the relation between U, Q and S?

Solve the puzzle by telling what does below picture means.