<form method="post" action="" name="Ankieta">
<input type="text" name="nazwisko" placeholder="name" required /><input type="submit" name="submit" value="Send" >
</form>
<form method="post" action="" name="Ankieta">
<input type="text" name="nazwisko" placeholder="name" required /><input type="button" name="Send" value="Send" onclick="document.Ankieta.submit();">
</form>