Every accepted answer
1. Name a country that drives on the left whose flag has black on it.
Edge of Space (1000 m): Antigua and Barbuda, Dominica, Saint Kitts and Nevis
Jet Stream (850 m): Eswatini, Guyana, Brunei, Bahamas, Barbados, Saint Lucia
Updraft (600 m): Papua New Guinea, Botswana, Lesotho, Timor-Leste, Trinidad and Tobago
Drifter (300 m): Tanzania, Uganda, Mozambique, Malawi, Zambia, Zimbabwe
Ballast (100 m): South Africa, Kenya, Jamaica
2. Name a country with a double letter in its name (like Greece).
Edge of Space (1000 m): Guinea-Bissau, Saint Kitts and Nevis
Jet Stream (850 m): Marshall Islands, Sierra Leone
Updraft (600 m): Andorra, Seychelles
Drifter (300 m): Russia, Cameroon
Decoy (150 m): Morocco
Ballast (100 m): Greece, Philippines
3. Name a country or territory in the Americas with fewer than 5 million people.
Edge of Space (1000 m): Dominica, Saint Kitts and Nevis, Curaçao, US Virgin Islands, British Virgin Islands, Turks and Caicos Islands, Anguilla, Montserrat, Sint Maarten
Jet Stream (850 m): Grenada, Saint Vincent and the Grenadines, Antigua and Barbuda, French Guiana, Guadeloupe, Martinique, Aruba, Bermuda, Cayman Islands
Updraft (600 m): Belize, Bahamas, Barbados, Saint Lucia, Puerto Rico, Greenland
Drifter (300 m): Trinidad and Tobago, Guyana, Suriname
Ballast (100 m): Jamaica, Panama, Uruguay
4. Name a Commonwealth member in Africa.
Edge of Space (1000 m): Mauritius, Eswatini, Seychelles
Jet Stream (850 m): Namibia, Gambia, Gabon, Botswana, Lesotho
Updraft (600 m): Malawi, Zambia, Rwanda, Sierra Leone, Togo
Drifter (300 m): Tanzania, Uganda, Ghana, Mozambique, Cameroon
Ballast (100 m): Nigeria, South Africa, Kenya
5. Name a country in the Nile river basin.
Edge of Space (1000 m): South Sudan, Eritrea
Jet Stream (850 m): Rwanda, Burundi
Updraft (600 m): Tanzania, Sudan, Uganda
Drifter (300 m): Ethiopia, DR Congo
Ballast (100 m): Egypt, Kenya
6. Name a country or territory with a land border with Spain.
Edge of Space (1000 m): United Kingdom
Jet Stream (850 m): Morocco, Gibraltar
Updraft (600 m): Andorra
Ballast (100 m): France, Portugal
7. Name a country that borders Austria or Hungary (not those two).
Edge of Space (1000 m): Croatia, Slovenia
Jet Stream (850 m): Serbia, Slovakia
Updraft (600 m): Romania, Czechia
Drifter (300 m): Ukraine, Switzerland
Decoy (150 m): Liechtenstein
Ballast (100 m): Germany, Italy