How many times do the hour and minute hands meet on an analog clock every day? What are those times?
Continue reading “Analog Clock Puzzle”
Brain Teasers and Puzzles
Brain teasers, puzzles, riddles, and other challenges
Rebus Puzzle 6
What common word or phrase is this rebus referring to?
WIDETHICK
SHORTTHIN
LONG
Solution
Through thick and thin
Four Triangles with Matches
Move exactly 3 matches to make these three equilateral triangles into four equilateral triangles of any size, without any matches crossing or overlapping.
Continue reading “Four Triangles with Matches”Proverb Missing Vowels
This fairly common proverb is missing its vowels. What is the original proverb?
PPRNCS CN B DCPTV
Continue reading “Proverb Missing Vowels”Fix the Equation
Make the following line a valid equation using only these mathematical operators: addition, subtraction, multiplication, division, parentheses, exponentiation, square root, and factorial.
2 2 2 2 = 50
Continue reading “Fix the Equation”Word to Complete Them All
I _ _ _ E
W _ _ _ H
C A _ _ _
C _ _ _ E R
_ _ _ I O
Which 3-letter word can be inserted into all four lines above to form complete words?
Continue reading “Word to Complete Them All”Balloon Direction Puzzle
You are driving your niece to a birthday party, and she is bringing a floating balloon filled with helium. When you make a sharp left turn, you both shift to the right. Which way does the balloon shift? Assume the windows are closed.
Continue reading “Balloon Direction Puzzle”Pirate Survivor Puzzle
The democratic pirates are at it again! Since last time, they have become very successful and have now expanded to 100 pirates. They decide this is too large of a group for plundering, so true to their democratic roots, they want to settle it with a vote:
- They vote on whether to kick out the newest (least senior) pirate.
- If a majority votes “aye”, then the newest pirate is kicked out, and the process repeats with the remaining pirates.
- If half or more of the remaining pirates vote “nay”, then the vote is over and everyone remaining is safe.
Each pirate wants to stay in the group, but if that is assured, they would prefer to kick out as many other pirates as possible (fewer ways to split the treasure).
How many pirates will remain at the end of this process?
Continue reading “Pirate Survivor Puzzle”Rebus Puzzle 5 – MOONCEON
What common word or phrase is this rebus referring to?
MOONCEON
Solution
Once in a blue moon
