Perfect Circle Test: Draw One in a Single Stroke

Steady Hand Test: How Well Do You Hold a Line?

Angle Sense Test: Can You Judge Degrees by Eye?

Human Stopwatch: How Accurate Is Your Sense of Time?

Line Bisection Test: Can You Eyeball the Exact Middle?

Centre of Mass Test: Where Does the Shape Balance?

Mirror Tracing Test: Follow the Line With a Reversed Hand

Fastball Catch Test: Stop the Ball on the Red Zone

Pursuit Tracking Test: Stay On the Moving Target

Speed–Accuracy Test: Your Hand in Bits per Second