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 AnswerA bus company has recently expanded and no longer has enough room for all of its buses. Twelve of their buses have to be stored outside.
If they decide to increase their garage space by 40%, this will give them enough room for all of their current buses, plus enough room to store another twelve in the future.
How many buses does the company currently own?
Riddle AnswerA farmer challenges an engineer, a physicist, and a mathematician to fence off the largest amount of area using the least amount of fence.
The engineer made his fence in a circle and said it was the most efficient.
The physicist made a long line and said that the length was infinite. Then he said that fencing half of the Earth was the best.
The mathematician laughed at the others and with his design, beat the others. What did he do?
Riddle AnswerWhat’s the least number of chairs you would need around a table to sit four fathers, two grandfathers, and four sons?
Riddle Answer