(a) the main causes of the WW1 were military nationalism,race for armaments and the division of europe into two hostile groups  The Triple Alliance and the Triple Entente.and the immediate cause was the sarajevo crisis in which the heir to austrian-hungarian empire was assassinated .
The main causes of the WW2 was the dissatisfaction over the Treaty of Versalles .Rise of Nazism and Fascism,japanese invasion of china,failure of the league of nations and the most important one was the invasion of hitler in poland.
(b)no its not a humour..hitler had actually commited suicide along with his newly wedded wife and all his generals in a bunker
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