Logic Riddles

Logic riddles with answers involve looking at situations and making judgements about them by ruling out impossibilities. If you like solving maths puzzles, you will most probably like logic riddles as well.

Peas and Lentils

A poor farmer went to the market to sell some peas and lentils. However, as he had only one sack and didn’t want to mix peas and lentils, he poured in the peas first, tied the sack in the middle, and then filled the top portion of the sack with the lentils.

At the market a rich innkeeper happened by with his own sack. He wanted to buy the peas, but he did not want the lentils.

Pouring the seed anywhere else but the sacks is considered soiling. Trading sacks is not allowed. The farmer can’t cut a hole in his sack.

How would you transfer the peas to the innkeeper’s sack, which he wants to keep, without soiling the produce?

Riddle Answer

Delivering Grain on Time

A collective farm was due to deliver its quota of grain to the state authorities. The management of the Kolkhoz decided the trucks should arrive in the city at exactly 11:00 A.M.

If the trucks traveled at 30 miles per hour they would reach the city at ten, an hour early; at 20 miles an hour they would arrive at noon, an hour late.

How far is the Kolkhoz from the city, and how fast should the trucks travel to arrive at 11:00 A.M.?

Riddle Answer

Gold Thief

A girl has stolen two bars of solid gold, each weighing 18 pounds, and is running away from police. On the path she is on, she comes up to a rope bridge with a sign saying that the rope bridge can hold a maximum weight of 130 pounds, and that if any more weight is placed on the bridge it will collapse.

The girl knows her weight is 100 pounds, so she walks across the bridge carrying both gold bars, and the bridge does not break. How is this possible?

Riddle Answer