Probability

Series: Brain Teasers

How much are you willing to pay to enter a coin game? Is an apparently lucky coin fair? Would you re-spin in a Russian Roulette game? What is the chance of having a disease if you tested positive? What is the probability of a court room reaching the right veredict?

Problems

Series: Brain Teasers

How do you measure time or height of a building with a couple of handful things, like a burning rope, watch and tape? How do you cross a bunch of people through a bridge at night with only one flashlight and do it fast? How do you figure out light switches?