Things that changed color
0Loading crowd target
Questions and sources
Things That Changed Color — Daily trivia Sunday, October 18, 2026: questions and answers
All 10 questions with answers and explanations. Play this daily
Q 01Which Looney Tunes bird was pink until censors complained that he looked naked?
- ARoad Runner
- BTweety
- CDaffy Duck
- DFoghorn Leghorn
Show answer
Tweety
Tweety. Bob Clampett modeled the bare baby bird on his own baby picture, and the studio added yellow feathers to cover him up.
Q 02Autumn's yellows are in leaves all summer. What fades away to let them show?
- ACarotene
- BTannin
- CChlorophyll
- DStarch
Show answer
Chlorophyll
Chlorophyll. The reds work differently: many trees make those pigments fresh each fall instead of just revealing them.
Q 03Which New York landmark was brown like a penny when unveiled, before weathering turned it green?
- ABrooklyn Bridge
- BChrysler Building
- CStatue of Liberty
- DEmpire State Building
Show answer
Statue of Liberty
The Statue of Liberty. Its green coat, verdigris, is corrosion, yet it shields the copper skin underneath from further damage.
Q 04Which white marble monument gets mud-pack facials to draw pollution stains out of its stone?
- ALincoln Memorial
- BParthenon
- CLeaning Tower of Pisa
- DTaj Mahal
Show answer
Taj Mahal
Taj Mahal. India's Supreme Court ordered polluting industries around it shut or moved, yet pollution has still turned its marble yellow-brown.
Q 05Some hydrangeas switch between pink and blue flowers. What about the soil decides the color?
- AHow acidic it is
- BHow salty it is
- CHow wet it is
- DHow warm it is
Show answer
How acidic it is
How acidic it is. Acidic soil lets the plant take up aluminum, which usually turns the flowers blue, so gardeners add lime for pink or aluminum sulfate for blue.
Q 06The Great Pyramid once gleamed white. Where did most of its limestone casing end up?
- AIn European museums
- BIn Cairo's buildings
- CAt the bottom of the Nile
- DIn Alexandria's lighthouse
Show answer
In Cairo's buildings
In Cairo's buildings. The smooth white stone was reportedly carted off to build the city, so tourists today see the pyramid's inner core.
Q 07Why did tennis balls change from white to yellow?
- ATo show up better on TV
- BYellow felt wore out slower
- CWhite balls stained on clay
- DA ball maker's brand color
Show answer
To show up better on TV
To show up better on TV. The ITF brought in yellow balls in 1972, but Wimbledon kept using white ones until 1986.
Q 08Chicago's St. Patrick's Day river dye came from plumbers. What were they using it to find?
- AIllegal waste dumping
- BCracked gas lines
- CUnderground springs
- DWhich way the river flowed
Show answer
Illegal waste dumping
Illegal waste dumping. The plumbers union turned that accidental green into a holiday tradition, and it still sponsors the dyeing.
Q 09US stop signs were yellow for decades. Why weren't they red?
- ARed dye was rationed
- BColorblind drivers missed red
- CRed was saved for railroads
- DNo red paint resisted fading
Show answer
No red paint resisted fading
No red paint resisted fading. The 1954 federal traffic manual called that 'largely' the reason for yellow, and switched stop signs to red.
Q 10In Earth's shadow during a total eclipse, the Moon still glows red. What light is that?
- AEarth's city lights
- BEarth's auroras
- CSunlight stored in the Moon's rock
- DEarth's sunrises and sunsets
Show answer
Earth's sunrises and sunsets
Earth's sunrises and sunsets. Our atmosphere scatters away the blue light and bends the reddened rest into Earth's shadow, onto the Moon.
How to play
- One question at a time, four options. Tap an answer to lock it in.
- You see the answer and a short explanation right away.
- Harder questions and faster answers earn more points. Share your score at the end.