What number comes next in this sequence?
ONE, THREE, FIVE, NINE, TWELVE, TWENTY-ONE, ?
This sequence isn’t based on math or addition — it’s based on spelling.
Every number in the list ends with the letter “e”:
ONE
THREE
FIVE
NINE
TWELVE
TWENTY-ONE
The next number that fits this “ends in E” pattern is:
✅ TWENTY-THREE
Pronounced as one letter, And written with three, Two letters there are, And two only in me. I’m double, I’m single, I’m black, blue, and gray, I’m read from both ends And the same either way. What am I?
Name an English word of more than 2 letters that both begins and ends with the letters “he” in that order, there are two possible answers. What is it?
Headache or Heartache.
What day would yesterday be if Thursday was four days before the day after tomorrow?
If Thursday was 4 days before the day after tomorrow,
then the day after tomorrow is Monday.
So tomorrow = Sunday, today = Saturday,
and yesterday = Friday.
What number is equal to ten times the number of letters in its name?
The word “Fifty” contains 5 letters.
Multiply those 5 letters by 10 → 5 × 10 = 50
And the number is 50, which perfectly matches!
This riddle blends math with language, requiring you to think across both meaning and form.
What one word connects all three of the following?
Final
Endure
Previous
(Hint: It’s a synonym or related concept )
The word last ties to each clue:
Final and last are direct synonyms.
To endure something means to last through it.
Previous can imply the last item or event before the current one.
If it takes five machines 5 minutes to make five widgets, how long would it take 100 machines to make 100 widgets?
Each machine makes 1 widget every 5 minutes (since 5 machines make 5 widgets in 5 minutes).
So with 100 machines working in parallel, they will produce 100 widgets in the same 5 minutes because they are all working simultaneously, not one after another.
This riddle tests your ability to recognize parallel processing over linear scaling.
What single word fits all three of these definitions?
A loud unpleasant noise
A piece of tennis equipment
A fraudulent or dishonest activity
The word racket has multiple meanings:
A racket can be a loud, disruptive noise.
It’s also the equipment used in tennis and other racket sports.
And in slang, a “racket” can refer to a scam or shady scheme, like a blackmail racket or protection racket.
This riddle plays on polysemy — one word with multiple distinct meanings.
What word becomes shorter when you add two letters to it?
The word “short” becomes “shorter” when you add “-er” to it — both literally and figuratively.
It’s a clever play on the double meaning of the word “shorter” — shrinking in size and a grammatical comparison.
What comes next in this sequence?
A, Z, B, Y, C, X, D, ?
This sequence alternates between the start and end of the alphabet:
A (1st letter), Z (26th)
B (2nd), Y (25th)
C (3rd), X (24th)
D (4th), W (23rd)
It’s a mirrored pattern moving inward from both ends of the alphabet at the same time.
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