Whoops, my bad...
Q07. Is there a quick test to determine handedness?
No, there is not. In fact, the only sure way to determine brain dominance is to anesthetize one half of the brain and then see what functions are still handled by the still functioning hemisphere. There have been interesting results obtained, such as people able to respond to visual cues but not verbal cues. I don't know about you, dear reader, but I am not willing to submit to this test just to definitively answer the question.
However, you can try this: Sitting comfortably, fold your hands together and notice which thumb is on top. Lefties will have the right thumb on top.
Readers should note that this test is not completely accurate. We have heard about a significant number of lefties on alt.lefthanders who fail this test. Readers should also note that hand preference is usually not evident until children are age 4-6. Some children have been known to exhibit a preference as early as age 2.
Well, I wasn't sure what you were talking about, but I was going to play along....