brain teasers
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Brain Teaser: How well do you understand weighted averages?
Asked by LostInParadise | 12 responses -
Brain Teaser - Can you complete this proof that everyone (yes, including you) ought to know?
Asked by LostInParadise | 10 responses -
Brain Teaser: What is the optimum choice of weights for a balance?
Asked by LostInParadise | 3 responses -
Brain Teaser: Can you figure out why this method works for finding the day of the week for a calendar date?
Asked by LostInParadise | 2 responses -
Brain Teaser - Can you explain how this works without using algebra?
Asked by LostInParadise | 25 responses -
Recommend me a BrainQuest-like program?
Asked by killertofu | 6 responses -
Out of all the animals that walk the earth which has the biggest heart in proportion to its size?
Asked by 42below from iPhone | 1 response -
Brain Teaser - How can you determine if date intervals intersect?
Asked by LostInParadise | 2 responses -
What number comes next in this pattern?
Asked by AriellaCG | 10 responses
