Posted 23rd July 2017 by
Here is the answer to yesterday’s question. If you haven’t read it, make sure to read it first.
As promised, I will give you two different answers. The first method has a slight drawback in that each lock can be used only once. The second method avoids this problem by not sending any keys through the mail.
Posted 22nd July 2017 by
Alice wants to send a message to Bob in the mail. Unfortunately, Bob lives with Eve, and they share a letterbox. Bob doesn’t trust Eve when it comes to sniffing around in Bob’s mail. So Alice and Bob want to devise a method of sending the message in such a way that Eve will not be able to read the message.
Posted 15th July 2017 by
In our Weekly Puzzle section, we will be teasing your brains with a different mathematical or logical puzzle every week. Let’s start with a classic from the great Martin Gardner. According to Gardner, the question is based on an old riddle. He points out that the obvious solution might not be the only one.
So here comes the riddle. Be sure to check the answer which we will be publishing tomorrow.
Posted 13th July 2017 by
We are extremely pleased to announce that we have just released version 2.0 of the Tewter app.
The app has been completely redesigned and re-structured. Everything has been optimised to make it easier for you to find the information you need. This will hopefully make your revision more successful.