See TOC Tips and Tricks by Suzanne Barnhill, MVP: How the TOC Appears
Both of your questions involve using direct formatting in your base text rather than style-based formatting.

Tables of Contents and Tables of Figures involve the same field in Word with different switches in the field.

• Generating a Table of Contents - Complex Documents
• Complex Documents - Insert a Table of Figures

Basic formatting of entries is controlled by the relevant TOC styles and the Table of Figures style.

For the one where there is strikethrough, apply the strikethrough as direct formatting.

For the one where you want the numbering in bold but not the caption text, experiment. This will be a Caption which uses a SEQ field for the numbering. I would try:

1. Applying Bold to the number in the Caption. (or)
2. Set the TOF style to be bold and apply direct bold formatting to the text of the caption but not the number or vice-versa. (Bold is a toggle setting in Word.)