Hardly any. IF you are able to rearrange the order, some may work: You did not clearly state if local transit also needed (tram, bus) 

1. check for ATT=Amterdam Travel Ticket and ARTT= Amtserdam REGION ticket-for 1 - 2 - 3 days, incl trains to airport. ARTT coves local buses in region, for 2. OR book a daytour by coach=bus, if it all sounds to complicated to find out about buses and all that.
2. for the other trips there is nothing, just buy online or from machine tickets for that day. It wont be cheap. Day 3: as I am right now just doing this route: visit all in 1 day is IMPossible-skip 1 or 2. Unless you only want a selfie from station name.
3. visit Br/BE: again consider a tourbus, or buy via NS-international, IF done at least 1 week before, its chepaer-without need to use specific trains. Change Antwerpen. You will need to buy 2 separate singles. The single ride to there takes a little over 4 hr.

Goejendag

Er is mogelijk toch 1 iets wat mogelijk (je mag zelf nagaan of prijzen opwegen tegen losse tickets): 1 country pass BeNelux-naar keuze voor 3 of 4 dagen in 1 maand.