There are 20 number that contains 14 between 1 to 1,000
There are 299 number that contains 14 between 1 to 10,000 (not 300, because 1414 will be counted as 1)

How many number that contains 14 between 1 to 10,000,000 ?
How many number that contains 14 between 1 to 10,000,000,000 ?
How many number that contains 14 between 1 to 10,000,000,000,000 ?

Anyway this problem was also being used on our recruitment ads, and we believe that if we post it at Loker section, we are not sure that there will be someone who can solve it? Because we already tried several job portals. Thats why we tried our shot to post it here.
For those who can solve this problem and interested in a full-time job, you can contact us (of course you will be paid nicely, even if you are a fresh graduate)

Good luck agan agan