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

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

Asked by Neha on 30 Aug 2021


Here is a conversation between a couple who both are software professionals.

Husband: Hey! What is your date of birth?
Wife Replied Angrily: It is 591062400
Husband after doing some calculations replied, "Got It".

What is the DOB of the wife?

Asked by Neha on 20 Feb 2025

Place the numbers from 1 to 9 in the circles in a manner that each side of the triangle sums up to 17.

Nine Numbers Riddle

Asked by Neha on 21 Jun 2021


When it is alive we sing, when it is dead we clap our hands. What is it?

Asked by Neha on 22 Aug 2025

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

Asked by Neha on 04 Oct 2025

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Asked by Neha on 11 May 2023


I can write cow in 13 letters.

Can You?

Asked by Neha on 03 Oct 2024

Find out the missing number in the picture attached:

Find the Missing Number

Asked by Neha on 10 Jun 2023

You are on your way to visit your Friend, who lives at the end of the hill. It is his birthday, and you want to give him the cakes you have made. Between your house and his house, you have to cross 5 bridges, and as it goes in the land of make believe, there is a troll under every bridge! Each troll, quite rightly, insists that you pay a troll toll. Before you can cross their bridge, you have to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake. How many cakes do you have to leave home to make sure that you arrive at a friend's house with exactly two

Asked by Neha on 20 Jan 2026


A Car is crossing a bridge 2 miles long. The bridge can only hold 10000 lbs, which is the exact weight of the car. The Car makes it half way across the bridge and stops. A bird lands on the car. Does the bridge collapse? Explain.

Asked by Neha on 31 May 2024

Hot Articles

Amazing Facts

Challenging

There is a cryptic organization called Cicada 3301 that posts challenging puzzles online, possibly to recruit codebreakers and linguists.