This IQ test would seem simple with only three questions - but left 83% of people boggled and failing the test. If it takes five machines five minutes to make five widgets, how long would it take 100 machines to make 100 widgets? Say the ball costs X. So we have bat + ball = X + (X + 1) = 1.1 because together they cost $1.10. This means the ball costs five cents and the bat costs $1.052.

Source: The Times December 13, 2023 17:19 UTC