How can any deodorant have a scent of its own? Why doesn't it wipe itself out? M.H. Seattle, Washington

Has all this evolution been worth it?

Is there a time limit on fortune cookie predictions? How long is it?

How do they fit all that hot air in blow dryers? Don't they ever run out?

Is the Earth at a different angle in the morning than it is at night? In the morning, I have to put something against the front door to hold it open. At night, it stays open by itself. A.L. Austin, Texas

I have been losing a lot of sleep lately over this, and I hope that you can help. When you write the capital letter H, do you make the two vertical marks first, and then the horizontal? Or do you do the vertical, the horizontal and then the other vertical one? H.N. Baton Rouge, Louisiana

As a sufferer of menopausal "hot flashes," I have experienced the ability of the human body to withstand freezing temperatures without the aid of warm clothing. Has science ever attempted to study this phenomenon with an eye toward eliminating our dependence on Middle East oil? Think of the savings if we could scrap the need for central heating! L.F. Oakland City, Indiana

It appears to me that in the past hundred years, an overwhelming amount of progress has been made in the world. What did all those people do for the first two thousand years? R.F. Manassas, Virginia

Is it true that an IQ can actually differ dramatically even from day to day? Is it also true that an IQ can drop even without having children or any other activity that causes brain damage? S.G. Cedar Falls, Iowa

Sigh.

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