needs to be free,offline and great.

bump.

AbiWord and GIMP

Good, free, fun, productive, and offline

Apps? Like tablet/mobile phone apps? Or powerful programs that are fully featured? What are you looking for specifically?

fully featured programs.

And my second question?

something game related.like fraps,bandicam,gametimechanger etc.

Download liberkey, it is a freeware distribution that runs entirely off a USB stick (you just save the distro to the USB stick and you're done, they all run as if already installed, ie unpacked). All the software is freeware, not shareware crap that keeps bothering you, and the Liberkey software handles all the update management for each application. Currently the ultimate Liberkey distribution has 293 apps which include free Office software (Openoffice, LibreOffice), music players, codecs, rippers, management, same for video, benchmark software, computer/network diagnostic software, the lot basically. And even the ultimate distro fits on a 2 GB stick so it doesn't need heaps of space.

The site is http://www.liberkey.com/en/catalog/browse.html. Probably sound like a shill but its a really good collection of software, and the benefit of the USB model is that you don't have to clog up your HDD with a bunch of apps you only use rarely.

Alright.

Ccleaner for cleaning up your PC is vital.
RadeonPro is another one, especially for AMD users as you can then use Adaptive V-Sync amongst other things.
MSI AfterBurner for GPU overclocking and over/undervolting.
Swiftshader if you wish to emulate pixel shaders on the CPU, which can allow you to play more modern games on old hardware.
CPU-Z
GPU-Z
Core Temp - So you can monitor your temperatures and clocks.
CPUID Hardware Monitor. - Name says it all really.
PowerISO. - Create an image of all your old archaic games on those optical disc things and never use them again.
wPrime. - CPU Benchmarking/Stability Utility.
Prime95. - Same as above.
SetFSB. - For overclocking laptop's.
Clockgen. - Same as above.
XSplit. - Record your games, CPU intensive, recommend a Hexacore CPU if you are running a quad-threaded game and recording in greater than 1080P.
Xfire. - Tracks where and when PC gamers are playing.
TeamSpeak. - Name says it all.
Ventrilo. - Voice chat channels.
Mumble. - Similar to above.
Raptr. - Cross game messaging application, which hooks into AIM, MSN, Steam, Games for Windows Live and amongst others.
TCP Optimizer. - Lets you fine tune your LAN/Internet connection for lower latency/more throughput.
nHancer. - For nVidia cards, haven't played with it much.
FileZilla. - A requirement for any gaming PC that goes to a Lan party to download Pr0n/Games er... I mean Patches and Linux Distro's.
Image Resizer. - Resize those screenshots with ease.

Benchmarking...
Unigen Heaven Benchmark. - Pretty Tessellated bits.
Catzilla. - It has cats.
Furmark. - Kinda' obsolete now that GPU's throttle when this is run.
3D Mark. - All of them.
Crystal Disk Mark. - Benchmark dem' SSD's.
Sandra 2013. - All your Rams are belong to us.

And that's all I can think of, other than stuff like Winrar, Winzip, zZip, Steam, Origin, uPlay...

@pemalite isnt raptr online only?