Lost bitcoin on paper wallet so i got a 0.8 btc on my paper wallet..and usually i checked the balance on daily basis on blockchain.info.

And weird thing happened yesterday,my paper wallet sent my btc with total amount of 0.2btc to unknown address..
And i swear i keep my paper wallet safely and never get exposed..after learning that ,i decide to transfer all remaining btc on my wallet on blockchain apps.

Please anybody can answer here is my paper wallet address.
this.https://blockchain.info/address/14w344ohpe2M35BkScgcFdANuei5MPK49Z

And here the transaction.
https://blockchain.info/tx/8d1d918dcd045732c79541662309b9fe83e7faea99e3e0e757e3620167b2bb7a
Only the ones with knowledge of the private key on that paper are able to send money from your address. If it's somebody else who also has your private key, it's weird that he/she didn't sent the entire balance.

Since it's impossible - let me repeat that, impossible - to send the funds without the private key, that leaves yourself as the only likely candidate who sent the 0,2 bitcoin.

Possibly you were performing another action like exchanging bitcoin for an altcoin using Shapeshift and you didn't (yet) correlate that event with the 0,2 transfer.