Good Riddles

Question: The sky is blue, the sea is green. The answer never ends in-between.

Question: Vanitha goes to park on oct 2 sunitha on oct 3 ramya on oct4 sheela on oct 5 on which date all four friends meet at the park.

Question: What has hands, but can not clap?

Question: Can you finish this pattern? j, f, m, a, m, j, j, a, s, o, n, _?

Question: There is a man dead in the middle of a vast oval, and there was a plane flying in the sky. With an unopened package beside him, how did he die?