L WAS GOING TO BLEACH HER SOCKS BECAUSE THEY HAVE GOTTEN MUDDY B RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Desert Did you answer this riddle correctly?
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Let us simplify boxes by naming them from 1 to 10.
Now the trick here is to pick different number of balls from different boxes. So to simplify things, we will pick balls corresponding to box number.

Thus, pick 1 ball from Box 1, 2 balls from box 2, 3 balls from box 3 and so on. You will have 55 balls altogether. Now, put them all in the balance.

If all balls were weighing accurate 10 grams, the total weight of the 55 balls would have been 550 grams. But one of the box must have had the defective balls.

Suppose if the defective balls were in box number 2, then the total weight will be 2 grams less than 550. If the defective balls were in box 8, the total weight will be less than 8 grams from 550. In this way, you will be able to identify which box has the defective balls. Did you answer this riddle correctly?
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He had a knuckle sandwich! Did you answer this riddle correctly?
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Your dad! Did you answer this riddle correctly?
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Optimus Prime Did you answer this riddle correctly?
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Because she was a knockout! Did you answer this riddle correctly?
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Skeet Did you answer this riddle correctly?
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17 mins.

The initial solution most people will think of is to use the fastest person as an usher to guide everyone across. How long would that take? 10 + 1 + 7 + 1 + 2 = 21 mins. Is that it? No. That would make this question too simple even as a warm up question.

Let's brainstorm a little further. To reduce the amount of time, we should find a way for 10 and 7 to go together. If they cross together, then we need one of them to come back to get the others. That would not be ideal. How do we get around that? Maybe we can have 1 waiting on the other side to bring the torch back. Ahaa, we are getting closer. The fastest way to get 1 across and be back is to use 2 to usher 1 across. So let's put all this together.

1 and 2 go cross
2 comes back
7 and 10 go across
1 comes back
1 and 2 go across (done)

Total time = 2 + 2 + 10 + 1 + 2 = 17 mins Did you answer this riddle correctly?
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A penny Did you answer this riddle correctly?
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FIVE. You have only four different colors of socks. If you pick 5, you can surely get one pair of matching socks. Did you answer this riddle correctly?
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A smea-gull Did you answer this riddle correctly?
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Pick three; there are only two colors. Did you answer this riddle correctly?
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An eggroll! Did you answer this riddle correctly?
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Because they're both cracked! Did you answer this riddle correctly?
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China Did you answer this riddle correctly?
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