License code cracked

Mari found some categories on her driver's license, such as End and Rest, and wondered what they mean.

Several readers, including Jerry and Scott, helped me out with this one. I also checked with Mark Couch at the Colorado Department of Revenue.

End, short for endorsement, indicates the types of vehicles you are licensed to drive in addition to a passenger car. M, for example, means you can drive a motorcycle; H means you can transport hazardous materials.

Rest is for restrictions. You could be restricted to an automatic transmission (A), daylight driving (D) and glasses (V), for example.

You didn't ask, but a couple of other somewhat-mysterious categories are: Class, which distinguishes between regular drivers (R) and several grades of commercial driver; Voter, which means you registered to vote when you were applying for your license; and Previous Type, which indicates whether you previously had a different type of license, such as a minor's license.

Try this poser:

What is the difference between baking soda and baking powder? Some recipes call for both, some just one or the other. - Jean

Know the answer? Post it on the Ask! blog, blogs.RockyMountainNews.com/denver/ask, or e-mail rudeenm@RockyMountainNews.com. While on the blog, check out the other questions on the Ask! home page, or post one of your own by clicking on the link to the right on the page.