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Puzzle 1
What three-letter word best completes these words?
c---on
he---
e---h
m---yr
qu---er
st---
?
Puzzle 2
If it took …
… Alex, Billie and Charlie exactly 60 minutes to dig a hole …
how long would it take for them …
… to dig half a hole?
???
Puzzle 3
Find two words, which are anagrams of each other, which complete this sentence:
Due to a recent outbreak of a ? infection in the zebra house, the local animal sanctuary had to ? their electron microscope correctly, to ensure rapid detection.
???
Puzzle 4
What number comes next in this sequence:
1 · 4 · 11 · 20 · 31 · 44 · ?