Diez. The question says "Twenty divided by two is". The answer is ten, in Spanish that's... diez.
Answer: first of all they are both countries and secondly they both have an I in their countries names
Tell me if they want specific types of answers
1. Venir
2. Venir
3. Iremos (not 100% sure tho)
4. Vamos
5. Ir (not sure tho)