Which Alice?

The Twelfth Question
letters. Well, I had the four letters written, and I had the four
envelopes correctly addressed, but I was careless and put some of
the letters into the wrong envelopes. However, I put only one letter
in each envelope. As it happens, I either got exactly three of them
right, or I got exactly two of them right, or I got exactly one of them
wrong. How many did I get right?" Alice got this one.
HOW MUCH LAND? "Let's see if you can do practical arithmetic,"
said the Red Queen. "A certain small farmer had no money to
pay his taxes. As a result, the King's tax collector took one-tenth of
his land away from him. After the land had been taken, the farmer
had ten acres left. How much land did he originally have?"
Alice almost came out with the wrong answer, but checked herself
just in time, thought a little more, and got it right. What is the
answer?
ANOTHER ACREAGE PROBLEM "Here's another," said the Red
Queen. "A different farmer had some farm land. On one-third of it
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