Customer: If I post this letter tonight, will it get to Karachi in two days time?
Post Master : Yes sir, it definitely will.
Customer : I bet you, it won''t.
Post Master : Why not?
Customer : It''s addressed to Sialkot.
''Badli hai duniya, kuchch kuchch main bhi badal gaya hoon,
Pahle bekaar tha ab S/W Programmer ban gaya hoon,
VC aaye to VB mein daal do, VB aaye to VC mein daal do,
Seedhe seedhe sabko museebat mein daal do,''