Really Hard Riddles 1 : September Riddle
Difficulty ★★★★☆ Popularity ★★★☆☆
man gave one son 10 cents and another son was given 15 cents. What time is it?
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Really Hard Riddles 2 : Famous Probability puzzle SHOOT
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Mr. Black, Mr. Gray, and Mr. White are fighting in a truel. They each get a gun and take turns shooting at each other until only one person is left. Mr. Black, who hits his shot 1/3 of the time, gets to shoot first. Mr. Gray, who hits his shot 2/3 of the time, gets to shoot next, assuming he is still alive. Mr. White, who hits his shot all the time, shoots next, assuming he is also alive. The cycle repeats. If you are Mr. Black, where should you shoot first for the highest chance of survival?
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Really Hard Riddles 3 : Writers Riddle
Difficulty ★★★★☆ Popularity ★★★★☆
What work can one never finish?
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Really Hard Riddles 4 : Aeroplane Hijack puzzle
Difficulty ★★★★★ Popularity ★★★★☆
A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?
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Really Hard Riddles 5 : Cipher Puzzle
Difficulty ★★★★☆ Popularity ★★★★★
What does this message say?
G T Y O R J O T E O U I A B G T
Hint
Count the letters and try splitting the letters up into groups.
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Really Hard Riddles 6 : Pyramid Number Puzzle
Difficulty ★★★★☆ Popularity ★★★★★
The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?
Question 1: What is the next two rows of numbers?
Question 2: How was this reached?
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Really Hard Riddles 7 : Unique Riddle
Difficulty ★★★★★ Popularity ★★★☆☆
What is the unique characteristic of the following words:
coughing, thirsty, defiant
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Really Hard Riddles 8 : CAT EXAM Riddle
Difficulty ★★★★☆ Popularity ★★★★☆
There is a shop that reads:
Buy 1 for $1.00
10 for $2.00
100 for $3.00
I needed 913 and still only paid $3.00. How could this be financially viable for the shop-keeper?
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Really Hard Riddles 9 : What Am I Puzzle
Difficulty ★★★★☆ Popularity ★★★★☆
If you throw me from the window,
I will leave a grieving wife.
Bring me back, but in the door, and
You'll see someone giving life!
What am I?
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Really Hard Riddles 10 : Mathematical Riddle
Difficulty ★★★★★ Popularity ★★★☆☆
Using only two 2's and any combination of mathematical signs, symbols and functions can you make 5?
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Really Hard Riddles 11 : Famous Elevator Puzzle
Difficulty ★★★★☆ Popularity ★★★★☆
A man who lives on the tenth floor takes the elevator down to the first floor every morning and goes to work. In the evening, when he comes back; on a rainy day, or if there are other people in the elevator, he goes to his floor directly. Otherwise, he goes to the seventh floor and walks up three flights of stairs to his apartment.
Can you explain why?
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Really Hard Riddles 12 : Mystery Puzzle Sherlock Holmes
Difficulty ★★★★☆ Popularity ★★★☆☆
One snowy night, Sherlock Holmes was in his house sitting by a fire. All of a sudden a snowball came crashing through his window, breaking it. Holmes got up and looked out the window just in time to see three neighborhood kids who were brothers run around a corner. Their names were John Crimson, Mark Crimson and Paul Crimson.
The next day Holmes got a note on his door that read '? Crimson. He broke your window.'
Which of the three Crimson brothers should Sherlock Holmes question about the incident?
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Really Hard Riddles 13 : Which Is The Odd One Out
Difficulty ★★★★★ Popularity ★★★☆☆
Find The Odd One Out
1.FLOW
2.SNIP
3.TRAP
4.DRAW
5.BACK
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Really Hard Riddles 14 : Answer This Joke Riddle
Difficulty ★★★★☆ Popularity ★★★★★
Why is 6 afraid of 7?
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Really Hard Riddles 15 : Hard Math Riddle
Difficulty ★★★★☆ Popularity ★★★★★
Take 9 from 6, 10 from 9, 50 from 40 and leave 6.
How Come ??
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Really Hard Riddles 16 : Death Mystery Riddle
Difficulty ★★★★☆ Popularity ★★★★☆
Two men are in a desert. They both have packs on. One of the guys is dead. The guy who is alive has his pack open, the guy who is dead has his pack closed. What is in the pack?
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Really Hard Riddles 17 : Hardest Math Riddle
Difficulty ★★★★★ Popularity ★★★★★
Create a number using only the digits 4,4,3,3,2,2,1 and 1. So i can only be eight digits. You have to make sure the ones are separated by one digit, the twos are separated by two digits the threes are separated with three digits and the fours are separated by four digits
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Really Hard Riddles 18 : Puzzle In A Puzzle
Difficulty ★★★★☆ Popularity ★★★★★
What are the next two letters in the following series and why?
W A T N T L I T F S _ _
*Hint: Check Puzzle Title
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Really Hard Riddles 19 : Alexander Puzzle
Difficulty ★★★★☆ Popularity ★★★★★
Alexander is stranded on an island covered in forest.
One day, when the wind is blowing from the west, lightning strikes the west end of the island and sets fire to the forest. The fire is very violent, burning everything in its path, and without intervention the fire will burn the whole island, killing the man in the process.
There are cliffs around the island, so he cannot jump off.
How can the Alexander survive the fire? (There are no buckets or any other means to put out the fire)
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Really Hard Riddles 20 : Challenging Puzzle
Difficulty ★★★★☆ Popularity ★★★★★
Outside a room there are three light switches. One of switch is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.
You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)
Your task is to then determine which switch controls the bulb ??
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Last Updated:2012-04-21