TWO MOTHERS AND TWO DAUGHTERS WENT OUT TO EAT EVERYONE ATE ONE BURGER YET ONLY THREE BURGERS WERE EATEN IN ALL HOW IS THIS POSSIBLE R , RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

18

More hours => more burgers.
More boys => more burgers.

The time become twice (3 hours / 1.5 hours).
Boys become six times (9 / 1.5).

Number of burgers = 2 * 6 * Original(1.5)
= 18 Did you answer this riddle correctly?
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There was a grandmother, mother, and a daughter. Did you answer this riddle correctly?
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Patty! Did you answer this riddle correctly?
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There are only 3 people
There's a grandmother her daughter and granddaughter. Did you answer this riddle correctly?
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A pack of cards Did you answer this riddle correctly?
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They ordered three cups, one for each person. The grandmother is also a mother and the mother is also a daughter.

Another solution: They ordered two cups. Both are mothers and daughters and one is a grandmother. Did you answer this riddle correctly?
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It wanted better buns. Did you answer this riddle correctly?
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"Is she older than her?"

Explanation: (He would ask one of the daughters if one of the other daughters is older than the last daughter). He always should pick the younger daughter based on what he knows. If he asks the older daughter and she says yes, then the youngest daughter will be known. If he asks the older daughter and she says no, then the youngest daughter is the other one. If he asks the youngest daughter and she says yes, she is lying and he will still pick the oldest. If he asks the youngest and she says no, he will just pick the other like in the first case. If he asks the middle daughter it doesn't matter because both will be acceptable choices. Did you answer this riddle correctly?
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Because they don't want to be nearsighted! Did you answer this riddle correctly?
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Yes. Never say the other half wasn't boys... Did you answer this riddle correctly?
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Corn Did you answer this riddle correctly?
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3, 3, and 8. The only groups of 3 factors of 72 to have non-unique sums are 2 6 6 and 3 3 8 (with a sum of 14). The rest have unique sums:

2 + 2 + 18 = 22
2 + 3 + 12 = 18
2 + 4 + 9 = 15
3 + 4 + 6 = 13

The house number alone would have identified any of these groups. Since more information was required, we know the sum left the answer unknown. The presence of a single oldest child eliminates 2 6 6, leaving 3 3 8 as the only possible answer. Did you answer this riddle correctly?
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He had two waiters and a busboy. Did you answer this riddle correctly?
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Pandas

"Eats-shoots-leaves." Pandas "eat", then "shoot" then "leave". Did you answer this riddle correctly?
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Kiwi Did you answer this riddle correctly?
YES  NO