Aquarians are the sharpest zodiac sign without a quiz. They are noted for their analytical skills and ability to notice nuances others miss.
You may think of them as perfectionists, but Virgos also possess a painfully flawless sense of logic and pragmatism, which, when combined with their unfailing eye for detail, makes them as sharp as a pin.
A Scorpio are intense and emotional. No other stimulus is as stimulating as the presence of a puzzle for someone who is adept at reading people and seeing through pretences.
They are both practical and disciplined to a fault. If you want the unvarnished truth in your personal life, a Capricorn is the one you should call.
The street smarts of an Aries are complemented by a razor-sharp wit, which they are more than happy to dispense in large quantities against anybody who crosses their path and sets off their short fuse.
Libras, symbolised by the scales, are well-rounded and detail-oriented. They can logically handle life's challenges because of their inner serenity.
Taureans are noted for their emotional savvy, which is equal parts self-awareness and empathy (seeing what others don't exhibit).
A Sagittarian's natural curiosity drives them to learn as much as they can about other countries, civilizations, and ways of life.
As born leaders, they know how to put on a show of self-assurance that is difficult to dissect. You have to pretend until you make it.
Cancer isn't lower on the list because they lack intelligence; rather, it's because their strong emotions sometimes get in the way of making rational decisions.
They may be the last to grasp a joke, but that's only because their minds are so far away in a fantastical, magical realm where they can create whole worlds.