You can not invent a good riddle on purpose, just as nothing else can be invented. Ideas for riddles
they appear in strange moments and in strange ways. They are suggested by something we see or hear and come to them through other riddles that are
formulated. It is useless to say: "I will sit down to invent an original riddle", because there is no way to create an idea; You can only use it when it arrives. You may think that this is wrong, because an expert in these things creates lots of riddles, while another, equally astute person, can not invent one. The explanation
It is very simple. The expert recognizes an idea when he sees it and is able, by his vast experience, to judge its value. Fertility, like ease, comes with practice.
Sometimes interesting new ideas arise from the confusion that is committed with respect to another riddle. An ingenious person, with an idea, can create riddles from almost anything. Coins, matches, cards, chips, bits of wire or string, all are useful. It has invented an immensity of riddles from the letters of the alphabet and those nine little digits and zero, 1, 2, 3, 4, 5, 6, 7, 8, 9 and 0.