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### Hard Puzzles

Top 10 Hard Puzzles

Hard Puzzles 1 : Popular Age Problem
Difficulty ★★★★☆     Popularity ★★★★★

Two old friends, Jack and Bill, meet after a long time.

Three kids
Jack: Hey, how are you man?
Bill: Not bad, got married and I have three kids now.
Jack: That’s awesome. How old are they?
Bill: The product of their ages is 72 and the sum of their ages is the same as your birth date.
Jack: Cool… But I still don’t know.
Bill: My eldest kid just started taking piano lessons.
Jack: Oh now I get it.

How old are Bill’s kids?

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Hard Puzzles 2 : Brain Twister Puzzle
Difficulty ★★★★☆     Popularity ★★★★★

2+3=8,
3+7=27,
4+5=32,
5+8=60,
6+7=72,
7+8=??

Solve it?

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Hard Puzzles 3 : Hardest Balance Logic Puzzle
Difficulty ★★★★★     Popularity ★★★★★

You are given a set of scales and 12 marbles. The scales are of the old balance variety. That is, a small dish hangs from each end of a rod that is balanced in the middle. The device enables you to conclude either that the contents of the dishes weigh the same or that the dish that falls lower has heavier contents than the other.
The 12 marbles appear to be identical. In fact, 11 of them are identical, and one is of a different weight. Your task is to identify the unusual marble and discard it. You are allowed to use the scales three times if you wish, but no more.

Note that the unusual marble may be heavier or lighter than the others. You are asked to both identify it and determine whether it is heavy or light.

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Hard Puzzles 4 : February Maths Puzzle
Difficulty ★★★★☆     Popularity ★★★★★

Using eight eights and addition only, can you make 1000?

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Hard Puzzles 5 : 2 Eggs 100 Floors Puzzle
Difficulty ★★★★★     Popularity ★★★★★

-> You are given 2 eggs.
-> Eggs can be very hard or very fragile means it may break if dropped from the first floor or may not even break if dropped from 100 th floor.Both eggs are identical.
-> You need to figure out the highest floor of a 100-storey building an egg can be dropped without breaking.
-> Now the question is how many drops you need to make. You are allowed to break 2 eggs in the process

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Hard Puzzles 6 : Cross Bridge Puzzle
Difficulty ★★★★☆     Popularity ★★★★☆

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

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Hard Puzzles 7 : 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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Hard Puzzles 8 : Unlock The Distance Puzzle
Difficulty ★★★★★     Popularity ★★★★★

Distances from you to certain cities are written below.
BERLIN 200 miles
PARIS 300 miles
ROME 400 milesAMSTERDAM 300 miles
CARDIFF ??? miles
How far should it be to Cardiff ?

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Hard Puzzles 9 : Find The Next Number
Difficulty ★★★★★     Popularity ★★★★☆

What are the next three numbers in this series?

4, 6, 12, 18, 30, 42, 60, 72, 102, 108, ?, ?, ?

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Hard Puzzles 10 : 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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Last Updated:2012-05-19

1. I think that these are very high use and entertaining, difficult puzzles. --------------

2. lovely collection budsie

3. Nice puzzles

1. not nice collection

4. Highly descriptive article, I liked that a lot. Will there be a part 2?

My web blog; bankruptcy attorney florida

1. Mr. Lal was having an early walk. He had just crossed a bridge when he saw a crowd of people. Rushing to them, he found that they were crowding around a dead woman. Lal was a famous detective. He took the case and started his investigation. The woman seemed to have come for an early walk, too. Seeing her handbag lying nearby, Lal ruffled through it and found what he wanted - her identity card. Her name was Lakshmi, and her house was about a ten minute drive away. Her number was also written on her card. Lal phoned the given number.
"Is this Lakshmi's residence?"
"Yes. And I am her husband. What do you want?"
"What! No way!"
"Sir, come here quickly."
About ten minutes later, a car pulled up. The husband got down, and on seeing the woman, rushed to her and started crying. Lal was about to console him when something flashed in his mind. He quickly had the husband arrested. Can you tell WHY..???????

2. Detective did not tell place of death to husband

5. those are really brainteasing......

1. not like tat but somewat better than tat

6. good time pass...

1. very bore. time waste

7. PUZZLES ARE NOT THAT MUCH DIFFICULT

8. Superb Puzzles....

9. puzzles are of hard level and interesting

1. it's very bore

2. ya its realy interesting

10. nice puzzle

11. i hate this puzzle

12. awesome

13. 9999=4
8888=8
1816=3
1212=0
1919=?