Which statements are false? List the numbers.

1. Tesla's brand is intangible asset of Tesla.

2. All intangible assets are subject to depreciation.

3. Intangible assets include ongoing internal research & development of COVID-19 treatment.

4. Only purchased goodwill in a business combination may be recognized as an intangible asset.

5. Patent, copyright and advertisement are intangible assets.

6. Intangible assets lack physical substance but provide exclusive right to the owner.