Numerous proffesionals in the field say that more often than not you get false information. They will say whatever they can to get the torture to stop and that includes making stuff up.
Depends on who you are torturing..
Our "professionals" are told to hold out as long as possible, but TRY to make it 24 hours so your comrades in arms can change or protect assets you know about. We know, and expect, even the best trained to not have the ability to withstand torture for more than just a few hours.
We are told NOT to lie, as our lies can reveal more truth than just telling them what we know.. but to TRY not to reveal anything for 24 hours..
Now imagine a terrorsist that is not only well trained, but can barely read or write.. and honestly thinks we are the devil incarnate.. We aren't talking about the Soviet Spetsnatz here..