Cross the Bridge

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?




Similar Riddles

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Asked by Neha on 14 May 2021


If Rajina's daughter is my daughter's mom, who am I to Rajina?

Asked by Neha on 11 Dec 2023

Find the next number in the sequence

5 12 24 36 ?

Asked by Neha on 08 Jul 2023


John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?

Hint: It is not 1/2 as you would first think.

Asked by Neha on 14 Jun 2024

A spaceship was lost. The detective was given a piece of paper. This was the location of the spaceship! This is what the slip had scribbled on it:
Juice, Umbrella, Potato, Ice, Tomato, Elephant, Rice.

Where is the spaceship?

Asked by Neha on 19 Jan 2026

Who is that with a neck and no head, two arms and no hands? What is it?

Asked by Neha on 27 Mar 2022


How can you write nineteen in a manner that if we take out one, it becomes twenty?

Asked by Neha on 23 Nov 2023

What do you see in the given picture?

Are you Intelligent ?

Asked by Neha on 17 May 2021

There are 2 sand hourglasses.

The small one can measure 5 hours and the large one can measure 7 hours.

How can we measure 16 hours with 2 sand hourglasses running together ?

Hourglass Time Puzzle

Asked by Neha on 30 Mar 2021


An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

Asked by Neha on 27 Jun 2025

Hot Articles

Amazing Facts

Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.