First Process:
First catch the process containing the word apt. Then kill the process.
ps aux | grep apt
Then
sudo kill -9 processId.
Second Process:
You can delete the lock file with the following command:sudo rm /var/lib/apt/lists/lock
You may also need to delete the lock file in the cache directory
sudo rm /var/cache/apt/archives/lock
sudo rm /var/lib/dpkg/lock
After that, try opening Synaptic again.
Resource Link: https://askubuntu.com/questions/15433/unable-to-lock-the-administration-directory-var-lib-dpkg-is-another-process/315791#315791