Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?
Count the number of times the letter "F" appears in the following paragraph:
FAY FRIED FIFTY POUNDS OF
SALTED FISH AND THREE POUNDS
OF DRY FENNEL FOR DINNER FOR
FORTY MEMBERS OF HER FATHER'S FAMILY.
Find three numbers such that
* When we multiply three numbers, we will get the prime numbers.
* The difference between the second and the first number is equal to the third and second.
It has a long neck, A name of a bird, Feeds on cargo of ships, It's not alive,
What is it?
What does the following BrainBat signifies?
ABCDEFGHIJKLMNOPQRSTUVWYZ
QQQQQQQQQQQQQQQQQQQQQQQQQ.
Complete the given grid with valid words. You can only use the letters AAEEIIMMPPTT.
Hint: The grid reads the same across as down.
Count the number of triangles in the picture below:
By what process could you make a 'Tea-Table' into food?
A man started to town with a fox, a goose, and a sack of corn. He came to a stream which he had to cross in a tiny boat. He could only take one across at a time. He could not leave the fox alone with the goose or the goose alone with the corn. How did he get them all safely over the stream?
What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.