-1 OR 5*5=26 --

I’m not sure of the context. Do you mean a math puzzle or a programming question (bitwise OR vs logical OR)? Here are the common interpretations and what they give:

• Arithmetic fact: 5*5 = 25 (not 26). So if this is a math statement, the right-hand side is already off.

• Bitwise OR (as in C/Java/etc.): -1 is all bits set in two’s complement. -1 | 25 = -1, not 26. So (-1 | 55) equals -1, and (-1 | 55) == 26 would be false.

• Logical OR (as in Python, JavaScript, etc.): -1 is typically treated as truthy. In a boolean-or expression, you wouldn’t get 26; you’d get some truthy value (depending on exact syntax). If the expression is meant to compare to 26, it’s not correct.

If you can tell me the exact context (which language or whether it’s a pure math puzzle), I can give a precise answer and a short worked example. If you want, I can also give you a quick practice problem set on bitwise vs logical operators.