Which One Doesn't Belong - Pictures?

Penguins are birds, unlike bats, dolphins, or echidnas

Mexico City is in North America, unlike London, Naples, or Budapest

An artichoke is not a fruit, unlike a coconut, guava, or dragonfruit

Emmanuel Macron is president of France, unlike Ronald Reagan, Woodrow Wilson, or Barack Obama

Io is a moon, unlike Mercury, Venus, or Uranus

This is a proposal for the flag of Mars, which is not a nation, unlike Romania, Guinea, or France

Indira Gandhi is not named Jane, unlike Jane Austen, Jane Goodall, or Jane Fonda

A Didgeridoo is considered a brass instrument, unlike a saxophone, clarinet, or double contrabass flute

This graph does not illustrate a function, since each x input can have multiple y outputs.

"The Scream" by Edvard Munch is an expressionist painting, unlike "Impression, Sunrise" by Claude Monet, "Washerwoman" by Camille Pissarro, or "Cypresses" by Vincent Van Gogh

Saudi Arabia begins with S, unlike Monaco, Mali, and Malaysia

The Eiffel Tower's construction occurred in the 19th century, unlike World War I, the first airplane flight, or the bombing of Nagasaki

Hoodoos do not begin with C, unlike capybaras, compasses, or currants

Maya Angelou is a poet, unlike George Washington Carver, Marie Curie, and Stephen Hawking

Potala Palace is not a religious building, unlike Angkor Wat, the Washington National Cathedral, or the Sheikh Zayed Mosque