A cloud weighs around a million tonnes. A cloud typically has a volume of around 1km3 and a density of around 1.003kg per m3 – that's a density that’s around 0.4 per cent lower than the air surrounding it (this is how they are able to float).

Why can’t you hear a pterodactyl go to the bathroom? Because the “P” is silent!

youhouu

What kind of exercise do lazy people do? Diddly-squats.