-1 OR 5*5=25 --

Answer: True (or 1)

Why:

• 5*5=25 is true.
• In many languages, -1 is treated as truthy (nonzero).
• True OR True = True.

Note: The trailing “--” hints at SQL comment syntax, making this a classic SQL injection payload in that context. In that scenario, the rest of the query would be ignored, potentially bypassing checks. This is for learning about security concepts—never test against systems you don’t own or have permission to audit. Use parameterized queries and proper input validation to prevent such injections. If you want, I can show how to defend against this with examples.