Hard Riddles

Hard riddles with answers are a true test of your brain power, reasoning and comprehension. You are sure to find these tough difficult riddles both challenging and puzzling. While these hard riddles and answers may drive you a little crazy sometimes, they may surprise you in the way they force you think out of the box.

Knight, Knave and Spy

There are three people, Alex, Brook and Cody. One of whom is a knight, one a knave, and one a spy.

The knight always tells the truth, the knave always lies, and the spy can either lie or tell the truth.

Alex says: “Cody is a knave.”
Brook says: “Alex is a knight.”
Cody says: “I am the spy.”

Who is the knight, who is the knave, and who is the spy?

Riddle Answer

The Bathtub Test

During a visit to a mental asylum, a visitor asked the director what the criteria is that defines if a patient should be admitted.

“Well,” said the director, “we fill up a bathtub. Then we offer a teaspoon, a teacup, and a bucket to the patient and ask the patient to empty the bathtub. Okay, here’s your test: Would you use the spoon, the teacup or the bucket?”

“Oh, I understand,” said the visitor. “A normal person would choose the bucket, as it is larger than the spoon.”

What was the director’s response?

Riddle Answer

Expensive Ring

Tom wants to send Sally an expensive ring through the mail because they live thousands of miles apart. The only problem is that everything sent through the mail is stolen unless there is a lock put on it. Tom has a box that is large enough to contain the ring and the box can be fitted with multiple locks. Both Tom and Sally have plenty of locks and keys but they don’t have any of the same locks or keys.

How can Tom send Sally the ring without it getting stolen?

Riddle Answer