You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.
Would you want to play first or second?
PS: The sum should be exactly 15.
our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.
Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?
How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?
Using Only Five 5's and any mathematical operator make sum as 37
If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?
What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?
Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?
What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?
Can you move 2 matchsticks to form four equal sized squares.
You see a boat filled with people, yet there isn’t a single person on board. How is that possible?
What word begins and ends with an E, but has only one letter?
Artificial Intelligence has crushed all human records in the puzzle game “2048,” achieving a high score of 839,732 and beating the game in only 973 moves without using any undo.