This looks like a table so you could enter the items in a table. You can remove the table borders to make it seem like text.
If it really isn’t a table then use hanging indents. Click
Format > Paragraph, in the dialog that opens click on the tab Indents & Spacing, under Indent in the field Before text enter 30mm, in the field First Line enter -30mm. OK.
In this paragraph you can now write “Hi”, press tab, write explanation and it will look like bullet points. Check that 30mm is enough for your longest leftmost text.
When you are happy with the layout then select your paragraph. In the sidebar under styles (F11) at the top right, click on the drop-down arrow and select New Style from Selection, in the box that opens give it a name that you can easily recognise, say Q&A_Indent, OK out. You can apply this style to any paragraph by clicking in the paragraph and then double clicking on the style