Final answer:
The square root of a number x is not always less or equal to x, as seen in the counterexample of 4.
Step-by-step explanation:
The statement "the square root of a number x is always less or equal to x" is false by finding a counterexample. Let's consider the number 4. The square root of 4 is 2, which is not less than or equal to 4. Therefore, this counterexample disproves the statement.