Logic Puzzles

Puzzles that can only be solved by thinking logically.

To cross or not to cross

A large truck is crossing a bridge 1 mile long. The bridge can only hold 14000 lbs, which is the exact weight of the truck. The truck makes it half way across the bridge and stops. A bird lands on the truck. Does the bridge collapse?

Answer
Score visitors
Average: 5.5 (2 votes)
Kind of riddle

A man found dead

A man was found dead in his study. He was slumped over his desk and a gun was in his hand. There was a cassette recorder on his desk. When the police entered the room and pressed the play button on the tape recorder they heard: "I can't go on. I have nothing to live for." Then there was the sound of a gunshot. How did the detective immediately know that the man had been murdered and it wasn't a suicide?

Answer
Score visitors
Average: 5 (2 votes)
Kind of riddle

How many threes

Jenna wrote all the numbers from 300 to 400 on a piece of paper. How many times did she write the digit 3?

Answer
Score visitors
Average: 4.5 (2 votes)
Kind of riddle

Fractions

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1,000?

Answer
Score visitors
Average: 4.5 (2 votes)
Kind of riddle

True or false

The following sentence is false. The preceding sentence is true. Are these sentences true or false?

Answer
Tags
Score visitors
Average: 3.7 (3 votes)
Kind of riddle

53 socks

A man has 53 socks in his drawer: 21 identical blue, 15 identical black and 17 identical red. The lights are out and he is completely in the dark. How many socks must he take out to make 100 percent certain he has at least one pair of black socks?

Answer
Tags
Score visitors
Average: 4.5 (2 votes)