River Crossing with one Torch

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?

River Crossing with one Torch




Similar Riddles

Count the number of triangles in the given picture.

Find out triangles

Asked by Neha on 28 Mar 2025


Find the last number in the series below:

voN luJ yaM raM ---

Asked by Neha on 05 Jun 2023

How can you leave a room with two legs and return with six legs?

Asked by Neha on 14 May 2021


The more you take me, the more you leave me behind.
Who Am I?

Asked by Neha on 15 Jan 2025

One night, a man runs away from home. He turns left and keeps running. After some time he turns left again and keeps running. Later, he turns left one more time and runs back home—but when he gets home, he finds a man in a mask. Who was the man in the mask?

Asked by Neha on 31 May 2025

A frog is at the bottom of a 30-meter well. Each day he summons enough energy for one 3-meter leap up the well. Exhausted, he then hangs there for the rest of the day. At night, while he is asleep, he slips 2 meters backwards. How many days does it take him to escape from the well?

Asked by Neha on 25 Nov 2024


Can you find a rabbit in the given picture?

Hidden Picture Riddle

Asked by Neha on 08 Apr 2023

Rectify the following equality 101 - 102 = 1 by moving just one digit.

Mathematical Signs Magic

Asked by Neha on 08 Mar 2021

What goes through cities and fields, but never moves?

Asked by Neha on 10 Mar 2025


Andrew’s doctor gives him three pills and tells him to take one every half hour. How much time will have passed by the time Andrew’s taken all three pills?

Asked by Neha on 22 Jun 2025

Hot Articles

Amazing Facts

Jigsaw puzzles

Jigsaw puzzles soared in popularity during the great depression, as they provided a cheap, long-lasting, recyclable form of entertainment.