The image contains several mental maths problems. The main problems are: 1) a. Nako 95 2030 e swana le 8:30pm b. Hid Kora erave matlatsi c. 31 d. 15+0=15 e. C mengwaga ye 2 lena f. 1 ematsotsi 10ze F. 4:15 pm e ngwalwa bb Kgo 10:15 g. 1/2 metšeso=metšeso wan a ye go 9. 40 ÷ 2 = b. 60 ÷ 3 =

$$20:30 - 12:00 = 8:30$$

The answer is Yes, 20:30 is $\boxed{\text{8:30 PM}}$.

b)
Interpretation: Name a month with 31 days.
The answer is $\boxed{\text{January}}$. (Other valid answers include March, May, July, August, October, December).

c)
Interpretation: What shape has 5 sides?
The answer is a $\boxed{\text{Pentagon}}$.

d)
Interpretation: Is the statement $15 + 0 = 15$ true?

$$15 + 0 = 15$$

The answer is Yes, the statement is $\boxed{\text{True}}$.

e)
Interpretation: How many days are in 10 years (assuming 365 days per year)?

$$10 \times 365 = 3650$$

The answer is $\boxed{3650 \text{ days}}$.

f)
Interpretation: Is 4:15 AM the same as 16:15?

$$16:15 - 12:00 = 4:15$$

This is 4:15 PM.
The answer is No, 4:15 AM is not $\boxed{\text{16:15 (which is 4:15 PM)}}$.

g)
Interpretation: Is 1/2 minute equal to 90 seconds?

$$\frac{1}{2} \text{ minute} = \frac{1}{2} \times 60 \text{ seconds} = 30 \text{ seconds}$$

The answer is No, 1/2 minute is $\boxed{30 \text{ seconds}}$.

Problems from 6-02-2026:

a)

$$40 \div 2 = 20$$

The answer is $\boxed{20}$.

b)

$$60 \div 3 = 20$$

The answer is $\boxed{20}$.