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Brain Teasers and Puzzles 


??

Puzzle 645 


Can you complete this sentence using words which are anagrams of each other?

Only the ? students could solve the hard ? equation.

Puzzle Copyright © Kevin Stone

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??

Puzzle 646 


What number completes this sequence:

4 · 15 · 14 · 11 · 5 · ?

Puzzle Copyright © Kevin Stone

workings hint answer print

??

Puzzle 647 


What comes next in this sequence:

boron · carbon · nitrogen · oxygen · ?

workings hint answer print

?

Puzzle 648 


Which bird is the odd one out:
finch gull eagle ostrich sparrow

Puzzle Copyright © Kevin Stone

workings hint answer print