Science
Technology
Engineering
Mathematics
Riddles
100

What is the chemical symbol for the element gold?

What is Au?

100

What does "HTTP" stand for in a website address?

What is HyperText Transfer Protocol?

100

A wheel completes 8 rotations.

How many degrees has it rotated in total?

What is 2880 Degrees?

100

What is 200 * 20

What is 4000?
100

What has many keys but cannot open a single lock?

What is Piano?

200

What is the most common gas in the Earth's atmosphere?

What is Nitrogen (N₂)?

200

What year was the first iPhone released by Apple?

When is 2007?

200

A box weighs 50 kg. How much force does gravity exert on it? (Take g=9.8g = 9.8g=9.8 m/s²)

What is 490 N?
200
Solve:  3 + x = 2x - 10
What is x = 13?
200

I fly without wings, I cry without eyes. Whenever I go, darkness flies. What am I?

What is Clouds?

300

What is the chemical formula for Glucose?

What is C6H12O6?

300

Which programming language, developed by Sun Microsystems in 1995, is known for its slogan "Write once, run anywhere"?

What is Java?

300

A car is traveling at 20 m/s and comes to a complete stop in 5 seconds. Assume constant deceleration.

What is the car’s acceleration?

What is −4 m/s2?

300

Derive: x30- x10

What is 30x29-10x9?

300

The more you take, the more you leave behind. What am I?

What are Footsteps?

400

What is the name of the phenomenon where light is bent as it passes from one medium to another, such as from air into water?

What is Refraction?

400

What was the name of the first video game console ever created, released in 1972?

What is Magnavox Odyssey?

400

What is the unit of electrical resistance in the International System of Units (SI)?

What is Ohm (Ω)?

400

Integrate: sin(10x)

What is -1/10cos(10x) + C?

400

I am not alive, but I can grow. I don't have lungs, but I need air. What am I?

What is Fire?

500

What is the term for the process by which a solid turns directly into a gas, bypassing the liquid phase?

What is Sublimation?

500

What is the name of the first commercially successful web browser, released in 1993, that helped popularize the World Wide Web?

What is Netscape Navigator?

500

What is the name of the material that is often used for high-temperature applications, such as in jet engines and gas turbines, due to its ability to withstand extreme heat and stress?

What is Tungsten?
500

Solve: 2x+1 + 2= 48

What is x = 4?

500

When it is alive we sing, when it is dead we clap our hands. What is it?

What is Birthday Candle?