What is the main challenge of the Moving Sofa Problem?
10 Puzzles That Cant Be Solved

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Social Studies, Business
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11th Grade - University
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Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Finding the cheapest sofa
Finding the most comfortable sofa
Finding the largest sofa that can fit around a corner
Finding the lightest sofa
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Kryptos sculpture known for?
Being the largest sculpture in the world
Being made of gold
Being located in a secret location
Containing unsolved encrypted messages
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Cicada 3301 believed to be?
A recruitment tool for intelligence agencies
A new type of insect
A famous painting
A type of computer virus
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Collatz Conjecture also known as?
The Fibonacci sequence
The 3x + 1 problem
The Pythagorean theorem
The Goldbach conjecture
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the most common answer to the Wilberforce Riddle?
A whale
A bird
A fish
A tree
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was found with a World War 2 pigeon in 1984?
An encrypted message
A photograph
A medal
A map
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main challenge of the Five Room Puzzle?
Finding the hidden treasure
Counting the number of rooms
Crossing each wall with a continuous line only once
Finding the shortest path through the rooms
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