If I remove one from eleven it becomes Ten and if I remove one from nine also becomes Ten. How?
I am an odd number. Take away a letter and I become even. What number am I?
What goes up but never comes down?
What begins with T, ends with T, and has T in it?
There was a man he lives in a hotel each morning he presses the first floor button each evening if there is a person in the elevator he asks him to press the 10 floor button if there is no one in the elevator he takes the stairs why.
2, 3, 5, 9, 17, _ What is the next number in the sequence?
Use the numbers 2, 3, 4 and 5 and the symbols + and = to make a true equation. Conditions: Each must be used exactly once and no other numbers or symbols can be used.
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?
Rearrange the letters in "new door" to make one word.
Count the number of lines in the image below ?
I have a five and a three-gallon jar. Assuming there is an infinite supply of water, how can I measure one-gallon water?
In the 1920s, people feared that crossword puzzles would contribute to illiteracy.
