If one small rabbit can dig a warren in nine hours, a medium rabbit can dig a warren in 6 hours and a large rabbit can dig a warren in four and a half hours, how long will it take one small, one medium and one large rabbit to dig a warren if they all […]
A man leaves his office daily at 5pm, gets on a local train to his town, and arrives at the station at 6pm. His wife reaches there at exactly 6pm in a car, to pick him up. This is a daily routine.On a certain day, he left the office at 4pm and forgot to inform
Achmed and Ali were camel-drivers and one day they decided to quit their job. They wanted to become shepherds. So they went to the market and sold all their camels. The amount of money (dinars) they received for each camel was the same as the total number of camels they owned. With that money they
Once an old man died, and in his will he stated that all the pearls he kept in a little bag were to be distributed among his daughters. To make things fair, the distribution must be done in the following way:The older girl should receive one pearl, and a seventh of the remaining pearls in
In the Art Gallery is a new conceptual art piece. The artist created a huge pile different paintings; periodically he picks up one of the paintings and hangs it on the wall, and adjusts it.At 11:00, the painting titled “Number 30” was hung.At 4:00, the painting titled “Number 240” was hung.At 7:30, the painting titled
Little Johnny was at it again.His big brother had some small race cars that he wanted to play with, and his brother did not want him to have them.Finally, he made a deal with Little Johnny. If he could figure out the Maths problem that his teacher had given them that afternoon, he’d let him
Arnold and Carlos love Maths puzzles. They are constantly making them up for each other to solve. One day, Arnold presents his friend Carlos with a problem. This problem has four clues. Here is the problem Arnold gave:“I am thinking of a mystery number. The mystery number is a 2-digit prime number. When the digits
Another numismatist decides to divide his coin collection among his children. The oldest gets 1/2 of the collection, the second gets 1/3, the third gets 1/n, where n is a natural number, and the youngest gets the remaining 50 coins. How many coins at most can there be in the collection? AnswerThere are 2,100 coins
Glenn and Steve took turns driving on a trip to Boston and back. Glenn drove the first 40 miles and Steve drove the rest of the way to Boston. On the way back, Glenn started to drive, and then Steve drove the last 50 miles.Which of the two drove more, and how much more did
The 4 dozen campers in the junior division live in 6 differently coloured cabins along Miller’s Pond. The smallest cabin has 6 campers, and the orange cabin is the largest with 10 campers. The yellow and green cabins are the only cabins with the same number of campers. The 13 youngest campers are in the
I recently gave a new watch to my friend on his birthday. However, as usual with my presents, it was quite useless, as it gains 6 minutes every hour. I set it using my own accurate clock at midnight, and the watch now shows 8:26 am. I know that it stopped 30 minutes ago, so
“And welcome back to Guess That Number! Before the break Mr. Pok got to the 1-million dollar question! So, Mr. Pok how are you feeling?”“Very nervous Bill, very nervous,” replied Mr. Pok.“Okay Mr. Pok, you know what to do. We’ll put a set of clues on are screen, and you must figure out what number
Jack sat in his father’s office, atop a bookcase by the wide, floor-to-ceiling window. His father’s employer had built this skyscraper right on the shoreline of the lake, directly across which stood the tallest tree in the state. Jack’s view was spectacular, and, as he looked across the 866 ft. wide lake, he noticed something
In front of me, I have level scales. On each side, there are 3 bags. In each bag, there are some marbles. There are 150 marbles in total. Using the clues below, work out how many marbles are in each bag. Bag 1 + Bag 2 = 56 marblesBag 1 + Bag 3 = 54
The local historical society has leased a castle to use it as a museum. The original lease was 99 years. I asked the curator how much time was left on the lease. His answer was as follows: two-thirds of the time past is equal to four-fifths of the time to come. How much time was