BrainBashers - Random Puzzles

Puzzle 129

How many common five letter words can you make from the following letters, using all the letters in each word?
AELST

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These words have had their vowels (AEIOU) removed, can you replace them to find some animals:

pnd frrt s ln hdghg chth tdpl ttr plr br lprd grff

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What three-letter word best completes the below words?
t---ed b---et fl--- c---et m---

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What number comes next in the sequence:

1 2 3 5 9 12 ?