A cylinder is a round object with two circles on each end that have the same size. The radius, r, of a cylinder is equal to the radius of one of the circu...
A ciphertext-only attack is one of the most difficult to mount successfully (and therefore the easiest to defend against) because the attacker possesses s...
DEFINITIONS1. to achieve what you want by breaking rules or by finding clever ways of working within them. How do you beat system and get rich? Live below...
In a regular pentagram (5-pointed star, NOT Pentagon), the angle in each point is 36°, so the angles in all five points sum to 180°. How many angles are t...
All of the marbles weigh the same except for one, which is heavier than all of the others. Are marbles heavy or light? In this case, you know that the dif...
The Rainbow Serpent made laws that they were all to obey but some began to make trouble and argue. The Rainbow Serpent said “Those who keep my laws will b...
The classic model is the “you cut, I choose” method: If two people are splitting a cake, one cuts it into two pieces and the other chooses which piece he ...
Yes, But their lifestyle isn’t one where web-weaving is necessary. That’s why they don’t build webs as often as female spiders do. That said, male spiders...
Nonograms. A nonogram is a grid-based puzzle in which a series of numerical clues are given beside a rectangular grid. What is a problem solving grid? An ...
Word problems commonly include mathematical modelling questions, where data and information about a certain system is given and a student is required to d...