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I started this topic just to tell the people on Brilliant.org about one of the greatest site I have seen. Since August (2012) I have been using a website ...

What is the maximum number of intersection points that is possible make with three straight lines without touching in the lines on the picture (and without touching each other)?

If \(x + y \ = \ 3\) and \(x^{3} + y^{3} \ = \ 25\), what is \(x^{2} + y^{2}\)

Prove that the Earth's Gravity is \( \approx 9.8 \ m/s^2\)

Everybody knows that I love two things: IA and FAIRY TAIL Now, I will make a quiz involving them. AND THERE IS NO RELATIONSHIP BETWEEN BLUE PEGASUS!

The letters of ...

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