Brain Teaser – Determine the code to open the briefcase
Doug had forgotten the 5 digit code to his briefcase. However, he did remember five clues:
The fifth number plus the third number equals fourteen;
The fourth number is one more than the second number;
The first number is one less than twice the second number;
The second number plus the third number equals ten; and
The sum of all [...]
The Raffle Tickets Brain Teaser
Challenge your brain with this interesting brain teaser. Given a number of statement find the solution to the question asked.
Challenge your brain – Boys vs. Girls jigsaw puzzle
A team of 6 girls and 4 boys put together a 2200-piece jigsaw puzzle in 4 hours. The same jigsaw puzzle was put together in 8 hours by a team of two girls and five boys.
Who are better at putting jigsaw puzzles together, boys or girls, and by how much?
Brain teaser – Make this equation true, 999999999999999 = 1990
Insert +, -, x or / in suitable places on the left hand side of = so as to make the above equation true:
Cross a Rope Bridge in 17 minutes
Can you figure out a way for four people to cross a rickety bridge in exactly (or under) 17 minutes?
Which of the following best expresses the main conclusion of the given argument
Discuss. No electoral system will ever produce the right leaders.
Determine which of the following is an underlying assumption of the above argument
Given some facts, determine which of the following is an underlying assumption of the above argument
Brain Teaser – Rectify this equality
How long will it take you to solve this equality?
Brain Teaser – How long did Christopher live?
Christopher’s youth lasted 1/6 of his life. He had his first beard in the next 1/12 of his life. At the end of the following 1/7 of his life Christopher got married. Five years from then his son was born. His son lived exactly 1/2 of Christopher’s life. Christopher died 4 years after the death of his son. How long did Christopher live?
Brain game – weighing 24 coins
What is the minimum number of weighings required to identify the coin, and why?
Arrange the numbers 1-9 in a 3×3 square using each only once
A challenging brain teaser requiring you to pay close attention to details.
Two sand glasses – Brain Teaser
What is the quickest way to time a 9 minute cooking session with two sand-glasses of 4 and 7 minutes respectively?
Brain Riddle
This riddle must be done IN YOUR HEAD and NOT using paper and a pen.
Weekly brain teaser | A gang of 17 thieves steals a bag of gold coins
A thought-provoking brain teaser. A gang of 17 thieves steals a bag of gold coins
Weekly Brain Teaser | Consider a vertical wheel of radius 10 cm
A challenging brain teaser requiring you to utilize pi.
Weekly Brain Teaser-Do you remember Algebra?
Weekly brain teaser. Do you remember Algebra?
Weekly Brain Teaser
Thought-provoking Feature Brainteaser. Do you remember your prime numbers?
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