請大家幫忙.......關於謎語

1.you toss me.
i land on my side.
i land on one side although i have six.
what am i?
2.it is easy to get into me.
but hard to get out of me.
what am i?
3.i fly.
sometimes really fast.
sometimes awfully slow.
what am i?
4.round like a ball.
hot like fire.
what am i?

多謝各位!!! 要求答案
如有多一些新既謎語加答案.