If we start with 2 and build up one digit at a time creating the smallest number with a certain property we get the number 20120456708436008 before we have to stop. What do we get if we start with the...
Should I live long enough to see it, on my birthday in the year 2025, my age will be equal to the sum of the digits of my birth year. I will still be less than 100 years old. What is my birth year and...
If you put one grain of rice on the first square of a chess board, then 2 grains on the second square, 4 grains on the third, 8 grains on the fourth and so on, until the 64th square, my neighbour...
Superman flew due east from the Shetland Islands (Latitude 60 degrees North, Longitude 1.2 degrees West) until he was back where he started. The next day he flew do east from a capital city. Although...
Nine 3x3 squares make up a grid containing 3 rows (R1, R2 and R3).
Determine which symbols (X, O and ▲) fit into the bottom left 3x3 square.
Please see link below:
https://ibb.co/Yh18YKj...
A genuine mathematical question: Find a number so that when its last digit is put in front, the number is exactly doubled. eg 1. 25 becomes 52 (slightly more than doubled) eg 2. 112 becomes 211 (which...
Fred and Jean are celebrating their 30th wedding anniversary and go down to the hotel bar. They meet four other couples which makes 5 couples in total occupying the hotel bar. Every person in the five...
A perfectly horizontal metal handrail constructed across the USA between Baltimore, Maryland and San Francisco in California measures 2,580 miles long. The chief engineer on the project informs you...
Emily was compiling her family tree and was determined to find out when her great, great grandmother was born. She had managed to recover a letter written by her great, great, great grandfather to his...
For Cinema Goers: 1. A A A F I N S T 2. A H O P T T 3. A A D E G I N O O O P R R S T 4. A D E F H I O O R T W Z Z 5. E E E I I L M M N O S S T T U Hopefully you will see the significance of the...
