Discover your intellectual strengths
This month's issue:
An apple costs 40 cents, a banana costs 60 cents, and a grapefruit costs 80 cents. How much does a pear cost?
Focus on individual cognitive skills with these short quizzes!
Get the book!
Practice question: C. Bachelor of Science, BSc, and Doctor of Philosophy, PhD.
Brain teaser: 40 cents. Assign 20 cents per vowel to each word.