If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

O_er_t_o_

Complete the missing letters of the given word.

What does this rebus means ?

PROG WORKRESS

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

How can you take 2 from 5 and leave 4?

What does the rebus below mean?

TEN BADTION

In a school, there are four subjects. Seventy percent of students study English, seventy five percent of students study Science, eighty five percent of students study Mathematics and eighty percent of students study Spanish.

Can you calculate the percentage of students that study all four subjects?

There are two candles. Both will only burn exactly for an hour. How will you use these two candles to measure forty-five minutes?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?