can you tell if the check is fake like water marks or anyting like that?

The best way to know whether a check is legitimate or not is to know the source or the person that it came from. I would question the legitimacy of any check where I was not familiar with the source. Many scams are proliferated through the use of so called "certified checks".

A "certified" check is a customer's own personal check, signed by the customer and certified by the bank. It is usually stamped "certifed" and some of the numbers at the bottom of the check may be punched out to prevent the check from going through the customer's account twice.

A cashier's check, on the other hand,is a check drawn by the bank on the bank's own funds, and is signed by an official of the bank. When the customer purchases the check, the bank takes the money from the purchaser's account and places it in its own account. Cashier's checks are most common, because many banks do not "certify" checks any more.

Depending which type of check you have, you should contact the bank where it is drawn to see if it is "good." They should be able to tell you, either way.

BC

ok i got another one that is it wasnt a certifed check it two us postal money orders that where already cashed how do they do that ,

Contact the post office to determine whether a postal money order is valid.

No offense, but can you rephrase the question using complete sentences and punctuation so we know what you are asking us?

how can you send a uspotal money oder that has been cashed or not .

Again, no offense, but what is you want to know?

There are many cons/scams right now that involve counterfeit US Postal Money Orders. Basically, they are fake checks that use old serial numbers.
Call the US Postal Service to verify the money orders before you cash them, deposit them, or send anything to anyone you have gotten the checks from.
And remember, if something seems too good to be true, it probably is.
Don't trust those offers you get through the mail or online, they are not real.