-1 OR 5*5=25 --

Do you want the result in a specific language or just the logical result? Here are common interpretations:

• Boolean logic (treat non-zero as true): -1 is true, 5*5=25 is true. True OR True = True.

• C/C++/Java-like languages (using short-circuit OR, result is 0 or 1): -1 is nonzero (true), 55==25 is true, so (-1 || (55==25)) yields 1 (true).

• Python (using or, which returns the first truthy value): -1 or (5*5==25) yields -1.

If you tell me the language or exam context, I can give a precise single-line answer and a tiny code snippet.