Q218:

Five people need to cross a river at night:

Each person takes the following minutes to cross
Person A: 1 min
Person B: 2 min
Person C: 5 min
Person D: 10 min
Person E: 15 min

Rules:
1. The boat can carry at most 2 people.
2. They must carry a torch to cross. There’s only 1 torch, and someone must bring it back each time.
3. When two people cross, they move at the slower person’s speed.

Question:
What is the minimum total time for all five to cross?

See options below ⬇️

@RiddlesRepository

Q219:

Three painters, A, B, and C, are painting a house.

Painter A can finish the house in 6 hours
Painter B can finish it in 8 hours
Painter C can finish it in 12 hours

If:
A and B start working together, but after 2 hours, A leaves.
Then B and C continue working together until the house is finished.

Question:
How long in total does it take to finish the house?

See options below ⬇️

@RiddlesRepository

You can always check https://t.me/RiddlesRepositoryAnswers
to see the explanations for the correct answers.

Did You Know the 1089 Number Trick?

There’s a maths trick that always ends in 1089, no matter what number you start with (as long as you follow one rule).

Here’s how it works:

1️⃣ Pick any 3-digit number where the first digit is bigger than the last. Example: 732
2️⃣ Reverse the number → 237
3️⃣ Subtract the smaller number from the bigger one → 732 − 237 = 495
4️⃣ Reverse your new number → 594
5️⃣ Add the new number and the result of your subtraction together → 495 + 594 = 1089

And just like that… you get 1089. It works every single time. Try it with a different number and watch the magic happen.

#DidYouKnow

@RiddlesRepository

Q223:

The more you take,
the more you leave behind.

What am I?

@RiddlesRepository

Why should you never argue with 90°?

Because it’s always right.

#jokes

@RiddlesRepository

Q228: I have a neck but no head,
Two arms but no hands.
What am I?

@RiddlesRepository

AI is smart but sometimes 🤦‍♂️🤦‍♂️🤦‍♂️

@RiddlesRepository

Parallel lines have so much in common…

It’s a shame they’ll never meet.

#jokes

@RiddlesRepository