156438

It says that the number has 2 digits,so that knocks out 3 and 120. It's also an even number 'goodbye' 83. Then it says the number in the tens place is greater than the number in the ones place so, 18,86,42 and 64 are not the missing number. The ones digit is not in the 3 times table so, there are still 3 remaining answers. The tens digit is not double the ones digit and ,yet we still have 3 possible answers. The sum of the two digits is a multiple of 5, 8+0=8 that's not in the five times tables.2+2=4 that's not in the 5 times tables either. And finally 4+6=10. We have a winner. Congratulations 46 you are our mystery number