I am sure no one can have two things for dinner. what are they?
There are 2 sand hourglasses. The small one can measure 5 hours and the large one can measure 7 hours. How can we measure 16 hours with 2 sand hourglasses running together ?
What's the only room from which no one can enter or leave
Can you complete the sequence? 192, 021, 222, 324, 252, 627, 2__, 9__?
Eight of us go fourth, not back, to protect our king from an attack. What are we?
How many minutes are there in Feb 2017? Note: The shortest answer is the correct answer.
If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten. How is this possible?
Find the Next Number in the Sequence 2 9 3 1 8 4 3 6 5 7 ?
You have a three-gallon and a five-gallon measuring device. You wish to measure out four gallons.
What is always in front of you but can’t be seen?
I’m tall when I’m young, and I’m short when I’m old. What am I?
In 2007, a puzzle was released and $2 million prizes were offered for the first complete solution. The competition ended at noon on 31 December 2010, with no solution being found. Wiki