AB and CD are two-digit numbers. Multiplying AB with CD results in a three-digit number DEF. Adding DEF to another three-digit number GHI results in 975. Furthermore, A, B, C, D, E, F, G, H, I are distinct digits. If E = 0 and F = 8, then what is A + B + C equal to?

If BA × 6 = A78, where A and B are single digits, then the values of A and B are respectively:

What is the value of the word RAT in the cryptarithmic equation CAT + CAT + CAT = RAT, if C = 3, A = 0, and R = 9?

In the cryptarithmetic puzzle TWO + TWO + TWO + TWO = HOW, where each letter represents a distinct digit from 0 to 9, what is the value of H + O + W?