Maths Puzzles

 This puzzle is about leap years. Copied straight from reddit  George’s 30th birthday will be on the last leap year of this decade.  Nicole’s 21st birthday was on the last leap year with an odd digit in it.   What are the years of birth of George and Nicole? 

The number must start with a 3 because it is between 290000 and 310000 and 2 is not an odd number - all digits are odd. The number also ends with.  The third digits is number of fingers on your hand. So 5. 3rd, 4th and 5th digits are consecutive odd numbers in ascending order - so they are 579 Second digit is 4th digit - 2 = 7-2 = 5 So we have our answer :  355793 What about the bonus question?  So if the ant travels x inches on first day, it travels x/3 inches on second day and x/3/3 inches on third day. The total distance is 78 x + x/3 + x/9 = 78  13x/9 = 78 x = 78 * 9/13 = 54 inches. First day it traveled 54 inched. Second day 54/3 = 18 inches and third day 18/3 = 6 inches. Total is 54+18+6=78 Note : The original question has distance as 76 inches. But that gives us a fractional value? Any other answers for 76 as total?

 Yes. Re-read the question now. what has w h a t - four letters. sometimes has  nine letters and never has five letters. Yes, a silly puzzle. But we can solve it. Which is good.

 Non stop consumption of Netflix and mobile games has dumbed down my brain. It happens to the best of us. Even to Einstein - the inventor of gravity ;) So I am of course discussing a very simple number puzzle - which does not involve any kind of analysis. So that we all solve it and feel better about ourselves.  It is a 6 digit number between 290000 and 310000. All the digits are odd. The first and the last digits are same. The second digit is obtained by subtracting 4th digit by 2. 3rd, 4th and 5th digits are consecutive odd numbers in ascending order. The number of fingers in your hand is the third digit.  What is the the number?   I am certain that all of you get the answer in no time.  As soon as you finish that puzzle, here is a bonus puzzle.  An ant has traveled 78 inches in 3 days. Each day it travels one third of the previous day. What distance does it travel on first day?