Logic and Riddles

What’s inside

• A bat and a ball cost $1.10 in total. The bat costs $1.00 more than the ball. How much does the ball cost?
• You have two ropes. Each rope takes exactly 60 minutes to burn, but neither burns at a uniform rate. How can you…
• Four people must cross a bridge at night using one flashlight. Their crossing times are 1, 2, 7, and 10 minutes, and…
• There are three boxes labeled Apples, Oranges, and Apples and Oranges. Every label is wrong. You may draw one fruit…
• What number comes next in this sequence: 2, 3, 5, 9, 17, ?
• A prisoner is told: “If you make a true statement, you will be hanged; if you make a false statement, you will be…
• Match each reasoning concept with its defining description.
• Match each classic riddle with its answer.