Why does Austria-Hungary have Switzerland? They were neutral.
Why do the Ottomans have Iran? They, like Switzerland, were neutral. And having Half of Cyprus, that much of Russia, and Sri Lanka doesn't make sense either.
For that matter, why didn't they collapse? They were too weak by this point to hold together well. There's certainly no way they could possibly get to the size shown on this map. Similarly, why does Austria-Hungary still exist, and how did they get Belize, Somalia, Eritrea, and Cambodia?
Why does France have Alsace-Lorraine?
Why does Germany have Belgium? Germany just wanted to get through them on the way to Paris, they weren't going to annex the country. They also didn't invade Luxembourg. And how did they possibly get that much of France and Britain's African and Asian Empires, and Korea and Manchuria?
Why is Central Asia independent from Russia, but Tibet not independent from China?
How the hell did Mexico get half of the US? They quickly decided upon receiving the Zimmerman telegram that that was not desirable, or remotely feasible. Or possible, for that matter. Besides, it only promised them Arizona, New Mexico, and Texas, not everything they lost in 1848. It certainly didn't say anything about Hawaii or the Pacific Northwest.
Why was Bessarbia divided between Germany and Austria-Hungary? That didn't happen until Stalin decided to move a bunch of people and borders around in Eastern Europe, and doesn't make the slightest bit of sense in World War I.
Why are you too lazy to fill in some of the random gray spots and islands?