thnik again!

What comes after 3? Read here to find out.

From the same source, a sad story: Isle of Wight man dies trying to answer 3,000 spam emails a day.

Use the six digits and any arithmetical operations to get the number at the top. There are two solutions for the example given. One is above. Can you find the other one?

The game has been played on TV game shows in Spain and in France. More. Play the game here.

A man pushes his car till it comes to stop in front of a hotel. At that moment he realises he is bankrupt. How come?

Problem source: Fernando Chorny

I do not feel obliged to believe that the same God who has endowed us with sense, nonsense, and intellect has intended us to forgo their use. - Galileo Galilei

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

Avocado and mango have one thing in common. On the inside there is a big stone/seed you can not eat. By volume maybe avocado is the one where there is less edible stuff.

But what about other fruits? Is avocado in a class on its own?

If you had to put a number on the volume wasted in percent of the entire fruit, which number would you choose?

We cannot teach people anything; we can only help them discover it within reasons. - Galileo Galilei

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

- Let’s play a game of dice!
- I am all game.
- We throw a dice each and the one with the highest number wins.
- I think I can manage that.
- Before we can start you will have to number these three dice.
- What do you mean? These dice have blank sides!
- Exactly. Your task is to write the numbers 1 to 18 on their sides in any way you like.
- I have to write all 18 numbers?
- Of course!
- Then what?
- Then you will let me inspect the three dice and I will choose the one I like the best.
- OK.
- Then you will choose any of the two remaining dice as yours. The last one we will not use.
- OK. What is the best way for me to number the three dice?
- I am glad you asked! 

Problem source: John Tierney in TiernyLab, New York Times.

Mathematics is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable to man or not. - Galileo Galilei

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?

Two thousand soldiers must cross a river. There is no bridge, and the current is too strong for swimming. The only way to get across is to use a row boat two boys are seen playing with midstream. The boat is not an ocean tanker. It can only hold the two boys or one soldier.

How did the soldiers get across?

Problem creator: Boris Kordemsky.

If I were again beginning my studies, I would follow the advice of Plato and start with philosophy. – Galileo Galilei

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A word has been added or deleted, or replaced by another word, to arrive at the ‘almost a quote’ above. Which word?