The answer to last week’s challenge is, Q: During World War II, the mathematician Abraham Wald was asked to help with determining which parts of the allied forces’ planes must be armored better. After examining the surviving American planes, he noticed that ... Read More
30
Apr2021
The answer to last week’s challenge is, Q: A man is sitting in his cabin in Sydney. Three hours later he gets out of his cabin in Melbourne. How is this possible?
A: The man is a pilot and he is sitting ... Read More
April 30, 2021admin
23
Apr2021
The answer to last week’s challenge is, Q: What has a mouth, but cannot eat; moves, but has no legs; and has a bank, but cannot put money in it?
A: A river.
This week’s challenge is:
Q: A man is ... Read More
April 23, 2021admin
16
Apr2021
The answer to last week’s challenge is, Q:You are sitting in a rowboat on a small lake. You have a brick in your boat. You toss the brick out of your boat into the lake, where it quickly sinks to the bottom. Does ... Read More
April 16, 2021admin
29
Jan2021
In an initiative to foster critical and creative thinking in children, Edward deBono is calling for your child's original idea for a "Dog exercising machine". Open for children aged 4-14. Prizes will be awarded to participants in a number of age categories. Some ... Read More
January 29, 2021admin
13
Nov2020
The answer to last week's challenge is, Q: I am the beginning of sorrow and the end of sickness. You cannot express happiness without me yet I am in the midst of crosses. I am always in risk yet never in danger. ... Read More
November 13, 2020admin
30
Oct2020
The answer to last week's challenge is, Q: A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in ... Read More
October 30, 2020admin
23
Oct2020
The answer to last week's challenge is, Q: I left my campsite and hiked south for 3 miles. Then I turned east and hiked for 3 miles. I then turned north and hiked for 3 miles, at which time I came upon a ... Read More
October 23, 2020admin
25
Sep2020
The answer to last week's challenge is, Q: At the cinema box office, a man gave $100.00 and received 5 tickets in return. No verbal or any other type of communication was exchanged between them. How did the ticket seller know that ... Read More
September 25, 2020admin
18
Sep2020
The answer to last week's challenge is, Q: Can you name out load, 5 days in a week without using the names of the days of the week or numbers of any kind?
A: The day before yesterday, yesterday, today, tomorrow and ... Read More
September 18, 2020admin
11
Sep2020
The answer to last week's challenge is, Q: There are two identical jars, one containing 1 bacteria and the other 2 bacteria. Each bacteria reproduces itself every second. The first jar with one bacteria, fills in 60 minutes. How long will it take ... Read More
September 11, 2020admin
04
Sep2020
The answer to last week's challenge is: Q: A father had 7 daughters. Each of the daughters had one brother. How many children did the father have?
A: 8. Each girl's brother is the brother of all of them.
This week's challenge ... Read More
September 4, 2020admin
28
Aug2020
The answer to last week's challenge is: Q: There are three sealed jars of apples. The first jar contains sour apples, the second jar contains sweet apples, and the third jar contains apples of both varieties. But the labels on each jar are ... Read More
August 28, 2020admin
21
Aug2020
The answer to last week's challenge is: Q: Three coins are placed side by side in a row touching each other. The leftmost one A, the middle one B and the rightmost C. How can you move A so that it will be ... Read More
August 21, 2020admin
07
Aug2020
The answer to last week's challenge is: Q: A young lad is playing around on the emergency ladder of his parent's boat. His leg gets tangled in one of the rungs and he is left dangling above the water with his head 2.5 ... Read More
August 7, 2020admin
31
Jul2020
The answer to last week's challenge is: Q: Two flexible wicks have been formed into torches. Each can burn exactly 60 minutes, but at a rate that is neither uniform nor predictable. How can you tell when 45 minutes have elapsed if you ... Read More
July 31, 2020admin
24
Jul2020
The answer to last week's challenge is: Q: How many times does the digit 3 appear between 1 and 50?
A: 15 times. 3, 13, 23, 30 31, 32, 33 (two 3's), 34, 35, 36, 37, 38, 39 & 43.
This week's challenge ... Read More
July 24, 2020admin
17
Jul2020
The answer to last week's challenge is: In a balloon off the coast of Ireland, I dropped two wine bottles off the side. One was full and one was empty, which one hit the ground first?
A: Neither hit the ground as ... Read More
July 17, 2020admin
10
Jul2020
The answer to last week's challenge is, Q: If four boys can pick four apples in four minutes, how many boys would be able to pick 100 apples in 100 minutes?
A: Four. As a team, can can on average, pick one ... Read More
July 10, 2020admin