If Mary’s daughter is my daughter’s mother, who am I to Mary?
(a) Grandmother
(b) Mother
(c) Daughter
(d) Granddaughter
(e) I am Mary
If Mary’s daughter is my daughter’s mother, who am I to Mary?
(a) Grandmother
(b) Mother
(c) Daughter
(d) Granddaughter
(e) I am Mary
A bathtub has two taps and a plug hole. The cold tap on its own fills the bathtub in 18 minutes. The hot one on its own fills the bathtub in 15 minutes. The plug hole can drain the bathtub in 10 minutes with the taps off.
How long will the bathtub take to fill if both taps are turned on and the plug left out?
Riddle AnswerFive potential donors are sitting on a bench from left to right outside the surgery room and are waiting for the doctor. Their ages are 6, 10, 31, 47 and 61. Their heights are 41, 49, 61, 66 and 75 inches. Their weights are 41, 76, 97, 126 and 166 pounds.
Determine the position, blood group, age, height and weight of each of them with the help of the following ten hints.