Both countries have different rules and therefore there might be some similarities but the rules are fairly different.
No, your passport number will typically remain the same after renewal.
No, the Indian passport number remains the same after renewal.
No, the US passport number remains the same after renewal.
That depends on what country is issuing the passport. The USA has one set of requirements that differs from Germany, and Thailand, Mexico and Argentinia have their own rules. Please reask and be more specific in your question. Example: "What are the photo requirements to apply for an Australian passport?"
Although people often use both names to refer to the same place Holland is in fact just a part of the Netherlands, not the whole country. So a Dutch passport is from the Netherlands, as that is the country. Holland is not a country, just a part of the country. So if someone comes from Holland or another part of the Netherlands, they will have a Dutch passport.
Yes, you can mail two passport renewals together in the same envelope as long as each renewal application is complete and includes all required documents and fees.
No, the passport number typically changes when you renew your passport.
No, your passport number remains the same when you replace your passport.
No, your passport number typically remains the same when you renew your passport.
No, the passport number typically remains the same when renewing a passport.
No, the passport number typically remains the same when renewing a passport.
No, the passport number typically remains the same when renewing a passport.