Ultimate Brain Teasers

What’s inside

• You have three switches downstairs and one light bulb upstairs. Only one switch controls the bulb. You may go upstairs…
• You have two ropes. Each takes exactly 60 minutes to burn, but neither burns at a uniform rate. How can you measure…
• A farmer must cross a river with a wolf, a goat, and a cabbage. The boat carries the farmer and only one item. What…
• Match each classic brain teaser with its correct answer.
• Match each riddle clue with the object it describes.
• Match each logic puzzle with its correct conclusion.
• Match each number pattern with the rule that generates it.
• Put the steps for solving the two-rope 45-minute puzzle in the correct order.