A dice has to the popular idea of six pages on which the numbers from 1 to 6. But there are a lot of other dice - most of them with more, sometimes with less than six...
The riddle of the previous week, the cryptogram, found most of the readers very easily. The Problem this week is likely to be somewhat different. It falls in the area of probability theory and has its pitfalls....
in mathematics means of abstraction. And that is why many mathematicians expect rather with letters than with real Numbers. In this puzzle of the week is also expected to Pay. However, in a slightly different...
If honest people are living with notorious liars, is programmed the Trouble. On the island, True Lies, the police are trying, with a spectacular theft, to educate. The valuable gold treasure from the Museum disappeared - and...
In a cube is much more than you think. You can share it for example with a straight cut into two halves so that the cut face is an equilateral triangle. As the sectional area of a...
The Problem of the frogs and toads is described. Each animal sits on a floating leaf, just the leaf in the middle is not occupied (see below). The brown toads want to bounce to the left, the...
conundrums with watches it was at this point already a few. About the question of when, for the first Time after 12:00 PM the big and the little hand exactly on top of each other. Tip: The...
When a wheel rotates fast, it should have better balance. Because otherwise it could run out-of-round. In the case of car small tire on the edge of the rim-mounted pieces of metal that the wheel is hitting....
The job sounds simple: memory is not expanding, more. But when you look into the case shows that the monster fan blocks the slot. I cap so the power cable, remove the fan, pull out the old...
Two beautiful grass courts of the football club, but the constant Mowing of the way to get the members. You decide, therefore, to test the mower. A representative shall in the morning, an even number...

WEATHER FORECAST

London, UK
haze
7.5 ° C
10.6 °
3.9 °
71%
1kmh
0%
Mon
22 °
Tue
21 °
Wed
15 °
Thu
14 °
Fri
16 °

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Black Blizzards – the decade in which the earth took revenge...

On the 15. April 1935, the disc of the sun disappeared in Mental Floss from the sky tent. It was so dark...