WHERE DO MATH TEACHERS EAT RI RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

Pictures of the fries are each worth two, but you have to keep in mind that each individual packet of fries is worth one when you get to the next line. That has baited people into thinking, incorrectly, that the last line is 5 + 2 x 10.

The fourth line has also thrown many people off because it involves order of operations after already including the tricky single packet of fries.

Multiplication comes before addition, so you have to multiply one packet of fries by one drink and then add that to one burger. Thus, 5 + (1x10) = 15. Did you answer this riddle correctly?
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Lunch and Dinner Did you answer this riddle correctly?
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He doesn't have math on Thursday. Did you answer this riddle correctly?
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Her lips were sealed! Did you answer this riddle correctly?
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This problem has an infinite number of solutions modeled by the equation 8a=7n, where a is the amount of flowers the man starts with and n is the number of flowers he leaves at each grave. The simplest and possibly trivial solution would be to start with 0 flowers and leave 0 flowers at each grave. A more significant solution would be to start with 7 flowers and leave 8 at each grave. Any positive integer multiple of this solution also satisfies the conditions. For example, the man starts with 14 flowers and leaves 16 at each grave; so, 14 doubles to 28, and 28-16= 12; 12 doubles to 24, and 24-16= 8; 8 doubles to 16, and 16-16= 0. The result is the same if the man starts with 21 flowers and leaves 24 flowers at each grave, or starts with 28 and leaves 32. Did you answer this riddle correctly?
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The required integer is -1.

For an example, let us subtract 7 from -1.

-1 - 7 = -8

Now the successor of 7 is 8 and (-8) is exactly divisible by 8.

You can try that for any number and it will hold true. 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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2: At each bridge you are required to give half of your cakes, and you receive one back. Which leaves you with 2 cakes after every bridge. Did you answer this riddle correctly?
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She has misplaced 119 pens in total. Did you answer this riddle correctly?
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Acute angel Did you answer this riddle correctly?
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Take out 5000 pearls. If the remaining pearl is white, then you've won 5000 gold bars! Did you answer this riddle correctly?
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When it is full of problems! Did you answer this riddle correctly?
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A calcu-later Did you answer this riddle correctly?
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Mars bar. Did you answer this riddle correctly?
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Because he spent more time dividing than conquering! Did you answer this riddle correctly?
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