A wholesale merchant came to me one day and posed this problem. Every day in his business he has to weigh amounts from one pound to one hundred and twenty-one pounds, to the nearest pound. To do this, what is the minimum number of weights he needs and how heavy should each weight be?
Riddle AnswerMath Riddles
Broken Glasses
My friend Asha was throwing a very grand party and wanted to borrow from me 100 wine glasses. I decided to send them through my boy servant Harish.
Just to give an incentive to Harish to deliver the glasses intact I offered him $3 for every glass delivered safely and threatened to forfeit $9 for every glass he broke.
On settlement, Harish received $240 from me. How many glasses did Harish break?
Riddle AnswerClock Time
What is the first time after 3PM when the hour and minute hands of a clock are exactly on top of each other?
Riddle AnswerThe Gong
Suppose a clock takes 7 seconds to strike 7. How long does it take for the same clock to strike 10?
Riddle AnswerOld Auto
An old auto is to drive a stretch of 2 miles, up and down a hill. Because the auto is so old, you cannot drive the first mile (the ascent) faster than 15 miles per hour.
How fast do you have to drive the second mile (going down the hill) in order to get an average speed of 30 miles per hour?
Riddle Answer