Math Riddles
What single digit appears most frequently between and including the numbers 1 and 1,000? Hint: look for a pattern!
The most common digit is 1! Every number 1-9 appears exactly the same number of times in every ten numbers. But because we included the number 1,000, there’s an extra occurrence of the number 1. In total, the number 1 appears 301 times, and every other number appears 300 times.
Who invented the telephone?
Alexander Graham Bell
It is impossible for me to be created, and I can never be destroyed, I can only change form. What am I?
Energy
Which computer hardware device performs the functions like click, point, drag, and select?
Mouse
What does the acronym STEM stand for?
Science, Technology, Engineering, Math
A half is a third of it. What is it?
1 1/2
Who created the incandescent light bulb, the phonograph, and the motion picture camera?
Thomas Edison
What can be measured but has no width, length or height?
Temperature
Which output device is used to display information in visual pictorial form?
Monitor
What were the Wright Brothers credited with inventing?
Airplane
How can you add eight fours together so the total adds up to 500?
444 + 44 + 4 + 4 + 4 = 500
Which scientist discovered radium and polonium, and is also known for her significant contribution to cancer research. Hint: She was the first woman to win the Nobel Prize!
Marie Curie
I can rush, I can be hot, I can be cold, I can be hard, I can slip through anything. What am I?
Water
"Firefox", "Chrome", and "Safari" are what type of computer software?
Web Browser
In the realm of statistics, what is an "outlier"?
An observation that lies an abnormal distance from other values in a random sample from a population.
A duck was given $9, a spider was given $36, a bee was given $27. Based on this information, how much money would be given to a cat?
$18 ($4.50 per leg)
Who was the Scottish microbiologist and physician who is best known for developing penicillin
Sir Alexander Fleming
I am a gas that helps plants but cannot be bought at the gas station. What am I?
Carbon Dioxide
What does 'CD-ROM' stand for?
Compact Disc Read-Only Memory
What are the rays of the sun that cause human skin to burn?
Ultraviolet Rays
A certain number has three digits. The sum of the three digits equals 36 times this number. Seven times the left digit plus 9 is equal to 5 times the sum of the two other digits. 8 times the second digit minus 9 is equal to the sum of the first and third. What is the number?
324
Who was the English naturalist, geologist and biologist, that was best known for his contributions to evolutionary biology.
Charles Darwin
I was once a massive star and soon I will be a brightly colored gas cloud. For now, I am a massive explosion. What am I?
A Supernova
What is the name of the system that manages and programs hardware resources for a computer?
Operating System
In eukaryotic cells, which organelle stores most of the cell's genetic material?
The Nucleus