[Q]: Objective: how do you use a ladder?
[A]: climb up it to reach high things

[Q]: Objective: What items do you need to make a wall pencil holder?
[A]: Rectangular eraser, xacto knife, pencil, pen, push pin and foam

[Q]: Objective: Deter mosquitoes from home.
[A]: Keep crushed rosemary leaves in containers around house.

[Q]: Objective: How do you create tertiary colours for painting?
[A]:
A tertiary colour is a colour that is the result of combining primary colours, like red, blue or yellow, with secondary colours, such as primary red and secondary purple to make a tertiary brown. Tertiary colours can become muddy if the primary colour contained non primary pigments, a common problem with some types of paint.