Brain Teasers
1 5 9 15 ...
What is the next number in this sequence?
1 5 9 15 ...
1 5 9 15 ...
Hint
These are pretty important things or I wouldn't be writing this...Answer
21.They signify the vowels in the alphabet. 1=A, 5=E, 9=I, 15=O, 21=U
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What, no comments after all these years? I liked this one. Pretty fun!
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