I think I accidently pressed something, and now I have the origin of the object away from the origin of the world, although, my other objects are working fine, and they "originate" from 0,0,0.
I tried to reset the origin (Shift+Ctrl+Alt+C, with all options in it).
I tried to move the object to 3d cursor(which is at 0,0,0, and then Origin to Geometry, Geometry to Origin), but still got those coordinates, where I messed up.
I also tried Alt+G, but it moves the object as well, which is not good in my case.
I also tried, to set the Pivot point to all the options in the list(Active, Median, 3D cursor etc).
And I also tried Alt+, to manipulate the center point, but with no luck.
Above, you can see the object is at the 3d cursor(I have the padlocks clicked, but I unclicked them eventually) and at world 0,0,0, but the location is at an offset somewhere.
On this one, you can see, the location is 0,0,0, where it supposed to be.