The Number Quiz: Do You Know Everything About The Number 21?

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| By Yopeace21

Yopeace21

Community Contributor

Quizzes Created: 1 | Total Attempts: 1,030

Questions: 10 | Attempts: 1,030 | Updated: Aug 26, 2023

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The Number Quiz: Do You Know Everything About The Number 21? - Quiz

Do you know everything about the number 21? Let's take the number quiz and find out. Angel number 21 is unique because it derives meaning from two other very powerful angel numbers, number 2 and number 1. Do you already knew know how much importance this number holds? Take the quiz and share it on social media with your friends! All the questions in this quiz are super fun & exciting! Make sure to give them all a fair try. Have fun!

Questions and Answers

1.

What is the roman numeral for 21?
- A.
  
  XIIII
- B.
  
  XXIIII
- C.
  
  XXI
- D.
  
  XX
Correct Answer
C. XXI

Explanation
The correct answer is XXI. In Roman numerals, X represents 10 and I represents 1. So, XX represents 20 and adding I to it gives us 21.

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1
0
2.

When did Adele release her hit album "21"?
- A.
  
  2010
- B.
  
  2011
- C.
  
  2012
- D.
  
  2021
Correct Answer
B. 2011

Explanation
In 2011, Adele released her hit album "21".

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3.

What element is number 21 on the periodic scale?
- A.
  
  Gallium
- B.
  
  Scandium
- C.
  
  Strontium
- D.
  
  Sulfur
Correct Answer
B. Scandium

Explanation
Scandium is the element number 21 on the periodic scale. It is a transition metal with the symbol Sc and atomic number 21. Scandium is a silvery-white metal that is relatively soft and has a high melting point. It is commonly used in the aerospace industry due to its lightweight and high strength properties. Scandium is also used in the production of high-intensity lamps and as an additive in some alloys to improve their performance.

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4.

Which group does 21 not fit into?
- A.
  
  Harshad
- B.
  
  Triangular
- C.
  
  Composite
- D.
  
  Prime
Correct Answer
D. Prime

Explanation
The number 21 does not fit into the group of prime numbers because it is divisible by numbers other than 1 and itself. In this case, 21 can be divided evenly by 3 and 7. Prime numbers are only divisible by 1 and themselves, so 21 does not meet this criteria.

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5.

is won by the first player to get 21 points.
- A.
  
  Tennis
- B.
  
  Basketball
- C.
  
  Table tennis
- D.
  
  Lacrosse
Correct Answer
C. Table tennis

Explanation
Table tennis is won by the first player to get 21 points. This means that in a game of table tennis, the player who reaches 21 points first wins the game. This scoring system adds a level of excitement and suspense to the game, as players must strategize and compete to reach the winning score before their opponent does.

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6.

What are you permitted to do once you turn 21?
- A.
  
  Smoke.
- B.
  
  Get a job.
- C.
  
  Drink alcohol.
- D.
  
  Drive a car.
Correct Answer
C. Drink alcohol.

Explanation
Once you turn 21, you are legally allowed to drink alcohol. In many countries, the legal drinking age is 21, and reaching this age grants individuals the permission to consume alcoholic beverages. This is a significant milestone for young adults as they are now able to legally participate in social activities involving alcohol and make responsible choices regarding its consumption.

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7.

Name all of the factors of 21.
- A.
  
  1,21
- B.
  
  1,3,21
- C.
  
  1,3,7,21
- D.
  
  1,3,4,7,21
Correct Answer
C. 1,3,7,21

Explanation
The factors of a number are the numbers that can divide it evenly without leaving a remainder. In this case, the factors of 21 are 1, 3, 7, and 21. These numbers can all divide 21 without leaving any remainder. Therefore, they are all factors of 21.

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8.

Who said: "When I was One and Twenty." ?
- A.
  
  Benjamin Franklin
- B.
  
  Shakespare
- C.
  
  Alfred Edward Housman
- D.
  
  George Washington
Correct Answer
C. Alfred Edward Housman
9.

When did Green day release their patriotic song "21 guns" ?
- A.
  
  2007
- B.
  
  2008
- C.
  
  2009
- D.
  
  2019
Correct Answer
C. 2009

Explanation
Green Day released their patriotic song "21 Guns" in 2009.

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10.

What is the actual weight of the human soul?
- A.
  
  21 kgs
- B.
  
  21 gm
- C.
  
  21 tonnes
- D.
  
  None of the above
Correct Answer
B. 21 gm

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Current Version
Aug 26, 2023

Quiz Edited by
ProProfs Editorial Team
Oct 26, 2009

Quiz Created by
Yopeace21

The Number Quiz: Do You Know Everything About The Number 21?

What is the roman numeral for 21?

When did Adele release her hit album "21"?

What element is number 21 on the periodic scale?

Which group does 21 not fit into?

is won by the first player to get 21 points.

What are you permitted to do once you turn 21?

Name all of the factors of 21.

Who said: "When I was One and Twenty." ?

When did Green day release their patriotic song "21 guns" ?

What is the actual weight of the human soul?