Brain Teasers
A Truck and a Bridge
Science
Science brain teasers require understanding of the physical or biological world and the laws that govern it.Science
A truck comes to a 1000 ft. long bridge and stops right before going on to it to read a sign. The sign says that the maximum weight the bridge can hold is 4 tons, which is the exact weight of the truck. So the truck starts going on the bridge. About halfway over the bridge a little bird lands on the top of the truck. Does the bridge break?
Answer
No, because by the time the truck is halfway across the bridge it has burned enough gas which brings its weight down to let the bird sit on it without the bridge breaking.Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments hidden to avoid spoilers.
Follow Braingle!