Which of the following table does not exists

The sum of two numbers is 96 and their HCF is 12. Total number of such pairs is?     

The least number which is exactly divisible by 5, 15 and 35 is 

The HCF of two numbers is 6 and their LCM is 84. If one of these numbers is 42, then the second number is:

The HCF and LCM of two numbers, A and B, are 14 and 196, respectively. The difference between these two numbers is 28. Find their sum.

If the highest common factor of two numbers is 18, then which of the following may be the least common multiple of the numbers?

The LCM of two numbers is 180, and the numbers are in the ratio 5:9. What will be the sum of the numbers?

The product of two numbers is 504 and their HCF is 6. Total number of such pairs of numbers is?     

Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is