Puzzle 1
If you write all of the numbers from 1 to 100 as words: ONE, TWO, THREE, …, ONE HUNDRED:
Which number is first alphabetically?
Which number is last alphabetically?
Which is the most common letter?
Which is the least common letter, and which number does it appear in?
Which letter is never used?
What is the total number of letters?
Which number is the longest?
How many numbers start with the letter T?
How many numbers contain the letter V?
100 is the first number to contain the letter N, what is the last number before 100 to contain a new letter for the first time?
If we carry on writing, when does the letter A first appear?
If we carry on writing, when does the letter B first appear?
Some questions have more than one answer, can you find them all?
Puzzle 2
What are the next three digits in this sequence:
7 · 3 · 1 · 8 · 2 · 8 · 5 · 3 · 1 · 5 · 3 · 0 · 3 · 3 · 1 · 4 · 3 · 0 · ? · ? · ?
Puzzle 3
Using the letters EEIIIISSSTTT complete this grid. The grid reads the same across as down.
| R | |||
| R | |||
| R | |||
| R |
Note: this puzzle is not interactive, and the squares cannot be clicked.
Puzzle 4
Below, 10 nine-letter words have been broken into chunks of three letters.
The chunks have been moved around, no chunk is used twice, and all of the chunks are used.
Can you determine what the 10 words are?
ent sen oom ush ile cro
cla rbr ise lis ssr lig
hai mar htn age ess new
sag clo gar ion ing oth
enc ine col our erw cod