Yes, you do need a Visa when traveling from America to Thailand.
Yes, Pakistani do need a visa to go to Thailand. The visa process does not take long, infact it gets done in a matter of days.
no
Pakistan and Thailand.
Yes, as a national of Thailand, you need a visa to enter Uruguay.
In short, westerners need a visa to visit Thailand. However if you are just visiting for less than 30 days, you don't need to apply for a visa. It is termed a tourist visa exemption in Thailand. Saw it here at the related link.
You need a visa expension tourist visa form.
yes
No need
Yes, as an Omani you must obtain a valid visa for Pakistan
pakistan passport holder need visa for poland
Vietnamese citizens are not required visa for visit Thailand less than 30 days.