BrainBashers - Random Puzzles

Puzzle 1

A 'complete' word is a word in which every letter, in turn, can be replaced by another to form a new word.

For example, RUG is a complete word because:
-ug = hug
r-g = rig
ru- = run

How many of the following words are not complete words? Proper nouns and names are not allowed.

team cost flew ward fail rook soft most lamp load

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Puzzle 2

The same three-letter word has been removed from all of these words, leaving the letters below (which are still in the correct order).

What was the three-letter word?
loe ch she er vae

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Puzzle 3

What is the minimum number of queens required on a chessboard such that all squares are attacked?

Queen On C3

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Puzzle 4

Using all of the letters A to Z, each once only, complete these common words. There are currently 2 different answers, can you find them both?
ap--e b-a-e bo--d -an-c -ro-e --ell -ra-y bu-c- -o-ra -umb- s-ua- lo--l g-es-

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