Hi Bizziel,
In response to your questions:
1) Reverse charge would apply here.
2)Reverse charge would apply here.
3) This would not be reverse charge as the Place of Supply of passenger transport would be where it is carried out so would be subject to local taxes.
4) This would not be reverse charge as the Place of Supply of passenger transport would be where it is carried out so would be subject to VAT in the member state where supplied.
5) If the training course is deemed as Business to Business then this should be reverse charge.
6) If the training course is deemed as Business to Business and is not an admission to an event then this will be subject to reverse charge.
Please see the guidance below:
5. Reverse charge
9. Services supplied ‘where performed'.
Thank you.