Logic Puzzles
This topic will be exclusively for logic puzzles!
Do you prefer riddles? (click here to go to the riddle topic)
Let's start with a logic puzzle! Which square fits in the last grid?
What comes next?
@DarkWolf
E
@kyan1o
Yes!
The rectangle starting on the left is moving from left to right one place at a time.
Which common word or phrase is depicted below?
You have two ropes coated in an oil to help them burn. Each rope will take exactly 1 hour to burn all the way through. However, the ropes do not burn at constant rates. There are spots where they burn a little faster and spots where they burn a little slower, but it always takes 1 hour to finish the job.
With a lighter to ignite the ropes, how can you measure exactly 45 minutes?
@DarkWolf
Light first rope at both ends and second rope at one end.
When first rope burns off, that's 30 mins.
Now light the second end of second rope too. That's another 15 mins
Gives 45 mins exact
@DonaldDraper
Yes, that's the solution! 👍
How many differently sized circles appear below?
What common word or phrase can you find in the image below?
@DarkWolf Robinhood
@DonaldDraper
Correct!
Serena and Venus decided to play tennis against each other. They bet one dollar on each game they played. Serena won three bets and Venus won five dollars.
How many games did they play?
@DarkWolf
Serena won 3 bets.
But Venus won 5$
Which means V had to beat S atleast 5 times. Then V had to beat S 3 more times to nullify the lead. And 3 more games where S took the lead.
So, in all 11 games.
Of which V won 8 and S won 3
@DarkWolf
Assuming their bets apply after a single game of 4 points is won (not set, or match), then $S = bets won by S - bets lost by S, $V = bets won by V - bets lost by V or $V = bets lost by S - bets won by S because bet lost by S = bet won by V. Question says S lost 3 bets, and V had $5, so I think:
$S = 3 - bets lost by S, $V = bets lost by S - 3 or 5 = bets lost by S - 3, bets lost by S = 8 and total games played = bets lost + won by one person which is 11
If they're betting after a tennis match is won, and there's 3 sets in a match, and 6 games in each set, they must've been playing a lot of tennis games
@kyan1
Typo correction: Question says S lost won 3 bets
@kyan1 @DonaldDraper @Barltik2065
11 is indeed the intended answer!
The phrasing was used to make clear Serena did win three times (getting 1 dollar each time) but in total still had to pay 5 dollars to Venus. With that interpretation 11 is the correct answer. If you have a different interpretation, I'd still be happy with the answer as long as your calculations are correct.👍
Which comes next in the sequence?
6, 13, 28, 59, ?
A. 111
B. 122
C. 126
D. 128
@DarkWolf
I think B because sequence is 6, 13, 28, 59. Differences are 7, 15, 31.
7*2 = 14, 14+1 = 15
15*2 = 30, 30+1 = 31, so 59 must be added with the next difference, which should be:
31*2 + 1 = 63, giving 63+59 = 122
@kyan1
You are absolutely right!
What common word or phrase can you find in the image below?
Which conclusion follows from the statements, with absolute certainty?
- None of the stamp collectors is an architect.
- All the drones are stamp collectors.
A. all stamp collectors are architects
B. architects are not drones
C. no stamp collectors are drones
D. some drones are architects
@DarkWolf
B
@Barltik2065
That's right!
If you rearrange the letters of "ahret," you would have the name of a:
a. Ventricle
b. Fish
c. River
d. Planet
e. Country