Hard Riddles

Browse through our collection of hard riddles.

29 riddles found
Hard
Question
15
Alligator Riddles
Hard
I have sharp teeth and a powerful jaw, with scales that protect me from claw. What am I?
15
Alligator Riddles
Hard
Question
15
Alligator Riddles
Hard
I stalk silently, hidden in the green. My eyes and nose above the water, my prey never sees me. What am I?
17
Alligator Riddles
Hard
Question
17
Envelope Riddles
Hard
I hold a message, but you can't see, what am I?
14
Envelope Riddles
Hard
Question
17
Envelope Riddles
Hard
Though I'm not empty, you can't see inside, what am I?
15
Envelope Riddles
Hard
The Enigmatic Tome
12
Gloom Riddles
Hard
What object holds the key to the secrets of the Hogwarts houses, yet its true nature remains a mystery even to the wisest witches and wizards?
13
Harry Potter Riddles
Hard
These magical corridors can transport you to distant parts of the castle, but to find them, you must look beyond what is seen and venture where few dare to tread. What are they?
12
Harry Potter Riddles
Hard
I have no wings, but I can fly, no eyes, but I can cry. I have no life, but I can die. What am I?
14
Horse Riddles
Hard
Four legs in the morning, two legs in the afternoon, and three legs in the evening. What unusual horse am I?
16
Horse Riddles
Hard
Four people need to cross a bridge at night. They have one torch. The bridge can only hold two people at a time. Person A takes 1 minute to cross, B takes 2 minutes, C takes 5 minutes, and D takes 10 minutes. How can they all cross in 17 minutes?
22
Logic Puzzles
Hard
You have 12 identical-looking coins, but one is either slightly heavier or lighter than the others. You have a balance scale and can use it only three times. How do you identify the false coin?
22
Logic Puzzles
Hard
A prisoner is told he will be hanged on a morning when he will not expect it. He reasons he cannot be hanged, but he is. How?
23
Logic Puzzles
Hard
How can you place 8 queens on a chessboard so that no queen can attack another?
22
Logic Puzzles
Hard
Three light switches are outside a closed door. Inside the room are three light bulbs, each controlled by one switch. You can only enter the room once. How can you determine which switch controls which bulb?
23
Logic Puzzles
Hard
A king has 1000 wine bottles, and he discovers that one is poisoned. He has 10 prisoners to help him identify the poisoned bottle. The poison takes effect exactly 24 hours after consumption. How can he identify the poisoned bottle in just one day?
21
Logic Puzzles
Hard
If you add the year of your birth, the year you graduated, and the year you will die, what is the mathematical impossibility?
18
Math Riddles
Hard
A king wants to send a message to his ally. The message must pass through several kingdoms, and each kingdom will keep a copy. How can he ensure the message is not altered?
25
Classic Riddles
Hard
What exists everywhere and nowhere until observed?
18
Science Riddles
Hard
What game has three kinds of goals?
13
Sports Riddles
Hard
What creature walks on four legs in the morning, two legs in the afternoon, and three legs in the evening?
25
Animal Riddles
Hard
What do you call a sleeping bull?
30
Animal Riddles
Hard
What has eight legs and goes up and down?
32
Animal Riddles
Hard
What runs but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?
15
Sports Riddles
Hard
What goes up and down but never moves?
20
Sports Riddles
Hard
Which letter of the alphabet has the most water?
11
Sports Riddles