Roughly what share of people are left-handed?
AnswerAbout 10%
Studies consistently put left-handers near 10%.
Fitness · Facts & stats
Dex facts & stats
7 fact-checked facts about dexterity, hand skills and coordination, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Which digit lets humans grip objects precisely because it is opposable?
AnswerThumb
The opposable thumb can touch the other fingertips.
Going deeper
What is the basic three-ball juggling pattern called?
AnswerCascade
The cascade is the first pattern most jugglers learn.
What is a pincer grasp?
AnswerHolding something between thumb and index finger
The pincer grasp is key for picking up small objects.
Ernő Rubik invented his famous cube puzzle in which year?
Answer1974
Rubik created the cube in 1974.
Expert level
How many bones are in the human hand, including the wrist?
Answer27
Each hand has 8 carpals, 5 metacarpals and 14 phalanges.
Rolling a coin across the knuckles is a classic exercise for which skill?
AnswerFinger dexterity
Coin rolls train finger control and coordination.
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