US Presidents
The 22nd and 24th presidents of the United States of America had the same parents but were not brothers. How can this be possible?
SOLUTION
Category: Insight
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Birthday Twins
Darma and Greg are twins, Greg being the older one by just few moments. However, several times in their lives, Darma celebrated her Birthday two days before Greg did. How is this possible?
SOLUTION
Before Mount Everest
Before Mount Everest was discovered, which was the highest mountain in the world?
SOLUTION
Haystacks
You have 10 fields and keep 1 haystack in the first one, 2 haystacks in the second one, 3 haystacks in the third one and so on. How many haystacks will you have if you combine all of them in your first field?
SOLUTION
Tough Decisions
You are driving your car along the road in a very harsh snowy weather and reach a bus stop. On this bus stop you see that there are three people waiting – your best friend, a sick old lady and the girl of your dreams. The car unfortunately can accommodate only 2 people (including you), so you can not take all of them with you. What will be your choice?
SOLUTION
Potatoes and Wire
If you have two spheres, you can always make a loop with some wire, such that it fits both of them (for example you can shape it as a circle). If you have any two potatoes, can you do the same?
SOLUTION
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Domino and Chess
Can you cover the chess board with 31 domino pieces, such that only two opposite corners are left uncovered?
SOLUTION
Touching Pencils
Can you arrange 6 new identical pencils in space such that every two of them touch each other? What if you have 7 pencils?
Remark: The construction doesn’t need to be stable.
SOLUTION
Fly Escape
Move only 2 matchsticks, so that the fly will escape from the trap. The shape of the trap must remain the same.
SOLUTION
