At the market you can buy a cow for $10, a pig for $1 and 8 hens for $1. How many animals would you need to buy to get 100 mixed animals for exactly $100?
7 cows, 21 pigs and 72 hens. The trick to this is finding the combination of cows and hens with the same cost and quantity since pigs are already equal. The magic combination is 7 cows and 72 hens, giving you 79 animals that cost $79 ($70 + $9). Then you just add 21 pigs to get to 100 animals.
Think of the six-letter name of a European capital city whose starting letter falls in the last half dozen letters of the alphabet and whose last letter is a vowel.
Now think of a three-letter words that means “permit”.
Last, combine all nine letters from the two words above. Rearrange the letters to form a word that you might call someone you like.
A bag contains 64 balls of eight different colors. There are eight of each color (including red).
What is the smallest number you would have to pick, without looking, to be sure of selecting 3 red balls?
This is a well known proverb that has had all of its vowels removed. In addition, the letters have been broken up into groups of four while maintaining their correct order.
A secret lair has a code to only allow members to enter. The person wanting to enter says a random number, then is told a number in response. In order to enter they must say the correct third number. Here are sequences that allowed entrance.
Five because s-e-v-e-n has 5 letters. The first number can be anything, the second number is the number of letters in the first number, and the third number is the number of letters in the second number.