HIBISCUS RIDD OLD M RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

We know from (3) that the youngest person was not the victim, from (4) that the youngest person was not the helper and from (6) that the youngest person was not the killer. The youngest person can only have been the witness therefore. If we make up a chart there are now three possible combinations:

Oldest person (father) H H M

Next to oldest (mother) V M H

Next to youngest (son) M V V

Youngest (daughter) W W W

(H = Helper ; V = Victim ; M = Murderer ; W = Witness)

We can work out from (5) that the father was the oldest, from (2) that the youngest person must have been the daughter. Therefore the next to the youngest must have been the son and the next to the oldest, the mother.

Of three possibilities: the first is impossible (from (3) the youngest person and the victim were of different sexes); the third is also impossible (from (1) the witness and the helper were of different sexes). Therefore only the second possibility holds and the mother was the murderess Did you answer this riddle correctly?
YES  NO  

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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May, because it has only 3 letters! Did you answer this riddle correctly?
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Monkey see monkey do Did you answer this riddle correctly?
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Nep-tunes. Did you answer this riddle correctly?
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Terri-Fried Did you answer this riddle correctly?
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He's a clock maker. Did you answer this riddle correctly?
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Because they're already a little short Did you answer this riddle correctly?
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May Did you answer this riddle correctly?
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Because it had too many problems! Did you answer this riddle correctly?
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Square meals! Did you answer this riddle correctly?
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The teacher told her not to use tables!) Did you answer this riddle correctly?
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In a blood bank! Did you answer this riddle correctly?
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Give me my quarterback/quarter back! Did you answer this riddle correctly?
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The trom-bone! Did you answer this riddle correctly?
YES  NO