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Riddles
100

This year marked the Federation of Australia.

What is 1901?

100

H₂O is the chemical formula for this substance.

What is water?

100

The author of Romeo and Juliet.

Who is William Shakespeare?

100

The capital city of Australia.

What is Canberra?

100

WWW stands for this.

What is the World Wide Web?

100

What is Miss Douglas’s favourite colour?

What is pink?

100

What is the acronym that represents the core values of Rooty Hill High School?

What is PERSIST?

100

What is the tallest mountain in the world above sea level?

What is Mount Everest?

100

Which team did the Penrith Panthers defeat 46‑26 in the semi‑finals to advance to the preliminary final in the 2025 NRL finals series?

What is the Canterbury‑Bankstown Bulldogs?

100

I’m the number that won’t change your friend; multiply by me—same in the end.

What is 1 (multiplicative identity)?

200

The first Prime Minister of Australia.

Who is Edmund Barton?

200

The part of the cell that contains DNA.

What is the nucleus?

200

A comparison using “like” or “as.”

What is a simile?

200

The world’s largest coral reef system, located in Queensland.

What is the Great Barrier Reef?

200

The handheld device invented by Apple in 2007 that changed mobile technology.

What is the iPhone?

200

How many sisters does Miss Douglas have?

What is two?

200

Who is the current Head Teacher Senior School at Rooty Hill High School?

Who is Miss Munzie?

200

How many players are on the field for each team in a standard game of soccer (football)?

What is 11?

200

Which major telecommunications provider is facing legal action following emergency call (Triple‑Zero) failures that are linked to multiple deaths?

What is Optus?

200

I’m a screen of squares where dancers live; short, looping videos are what I give.

What is TikTok?

300

This referendum allowed the Commonwealth to make laws for Aboriginal people.

What is the 1967 Referendum?

300

This type of energy is produced by moving water.

What is hydroelectric energy?

300

The main idea or message in a story is called this.

What is the theme?

300

The line of latitude that divides the Earth into Northern and Southern Hemispheres.

What is the Equator?

300

The Australian scientist who invented Wi-Fi.

Who is John O’Sullivan (and CSIRO team)?

300

In what month does Miss Douglas celebrate her birthday?

What is November?

300

What decade was Rooty Hill High School officially established?

What is the 1960s?

300

Which planet is closest to the sun?

What is Mercury?

300

Which university in New South Wales announced plans to cut more than 1,100 subjects, including teacher education and public health, as part of a financial turnaround?

What is the University of Technology Sydney (UTS)?

300

Read me forward and backward—I’m just the same. Name the word style that plays this game.

What is a palindrome?

400

This event in 1851 brought many people to Victoria and NSW in search of fortune.

What is the Gold Rush?

400

The greenhouse gas most responsible for climate change.

What is carbon dioxide (CO₂)?

400

This Australian author wrote Tomorrow, When the War Began.

Who is John Marsden?

400

This Asian country has the largest population in the world.

What is India?

400

The branch of science focused on designing machines with human-like intelligence.

What is artificial intelligence (AI)?

400

Who is Miss Douglas’s favourite singer or celebrity?

Who is Beyoncé?

400

What is the school motto of Rooty Hill High School?

What is 'Learning, Leadership and Achievement' 

400

Which artist painted the famous artwork The Starry Night?

Who is Vincent van Gogh?

400

What major sporting event is planned to take place on the South Lawn of the White House in 2026, to celebrate the United States’ 250th anniversary?

What is a UFC mixed martial arts event (UFC fight night)?

400

I’m the green chef in leafy cafes, cooking with light on sunny days.

What is photosynthesis?

500

The 1938 protest held on the 150th anniversary of colonisation, organised by Aboriginal activists.

What is the Day of Mourning?

500

This theory explains how continents move across the Earth’s surface.

What is plate tectonics?

500

The perspective from which a story is told.

What is point of view?

500

The line of longitude at 180° that roughly marks the change of one calendar day to the next is called this.

What is the International Date Line?

500

The computer programming language named after a type of snake.

What is Python?

500

How many times has Miss Douglas taught the HSC Business Studies course?

What is 12 times?

500

In what year did Ms Cawsey become the Principal of Rooty Hill High School?

What is 1997?

500

What number comes next in this sequence: 2, 3, 5, 7, 11, 13, ___?

What is 17?

500

What sentence did Erin Patterson receive in 2025 for the fatal mushroom lunch that killed three people in Leongatha, Victoria?

What is life in prison with a non-parole period of 33 years?

500

I’m a comparison without “like” or “as,” a tiger in a maths class.

What is a metaphor?