I hate it when people make riddles that have hundreds of possible jawapan but only one answer is correct. It's like asking for the factors of 32, but saying only 4 and 8 are correct. Time, hot air baloons, helecopters, a light object in the wind, a kite, an earlier angkasa craft (Before the shuttle era.), a hypothetical antigravity device, the big blue note. seterusnya time, be a bit lebih specific why don't you?
@Dr I would have to agree with Heitsi I mean my answer was correct as well. Yet the answer was pretty simple. Besides it would help ya know. anda can't get too upset atau bothered at people who guessed possible answers.