What am I?

I am a number with a couple of friends, quarter a dozen, and you'll find me again. What am I?

I can wave my hands at you, but I never say goodbye. You are always cool when with me, even more so when I am high! What am I?

I moan, I groan, I chase after you. I never seem to rest. Time’s up for you. What am I?

I am a white and black board in which some one moves us

Riddles and Answers