There are 25 red balls, 47 green balls and 3 blue balls in a basket. There is a blind man. What is the minimum number of balls that the blind man has to pick to make sure that there are at least 2 balls of different colors?
48 balls. There is a small chance he may pick up 47 green balls in a row.
If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?
There is a 50/50 chance of each toss being either heads or tails. The previous toss does not impact the next toss.
Dean Sam and Castiel are three brothers. Interestingly their current age is prime. What's more interesting that difference between their ages is also prime. How old are they?
2,5,7 (Age differences is prime, 7-2, 7-5, and 5-2)
Joe has ten coins totaling $1.19. From these coins, he cannot make exact change for a dollar, half-dollar, quarter, dime, or nickel. What are the coins?
A half-dollar, a quarter, four dimes, and four pennies.
In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?
The person was born in 2005 B.C. (Before Christ). T
Add me to myself and multiply by 4. Divide me by 8 and you will have me once more. What number am I?