Terry and Julie visited their daughters during the winter months, from November through March.

Question

Each daughter lived in a different city and Terry and Julies only visited one daughter each of the five months. The daughters&rsquo; names are Bernadette, Catherine, Donna, Evelyn, and Frederica. When did they visit each daughter?

Clues
1. Terry and Julies went to Portland before going to Fargo. They also visited Bernadette after visiting Donna.

2. Over three consecutive months they went (in order) to Syracuse, Catherine&rsquo;s hometown, and Fargo.

3. They visited Frederica in March. Evelyn does not live in Syracuse.

4. The visit to Houston was immediately after the visit to Bernadette, which was immediately after the visit to Las Vegas.

5. Bernadette does not live in Syracuse. Catherine&rsquo;s visit was not in February or in December

Answer

In November, Terry and Julie visited Evelyn in either Portland or Las Vegas.
In December, they visited Donna in Syracuse.
In January, they visited Catherine in either Portland or Las Vegas. 
In February, they visited Bernadette in Fargo. 
In March, they visited Frederica in Houston.

Answer

I think it's easiest organising each detail mathematically in a list + table than memorising them:
port < fargo
don < bern
syra (cath) fargo
fred = 5
eve <> syra
hous = Bern + 1
bern = Las + 1
bern <> syra
cath <> 4
cath <> 2

Start with the simplest clues, where there's only one or two options (fred = 5, cath <> 4 + cath <> 2 + cath is sandwiched => cath = 3), then for each revealed entity you go over its clues to see what it tells you about the others (eg cath -> syra & fargo). In more difficult puzzles you have to guess a detail to reach a contradiction, but that's not the case here.

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Terry and Julie visited their daughters during the winter months, from November through March.

Answers (2)