To find the average of the first eight odd natural numbers, we first list them:

1, 3, 5, 7, 9, 11, 13, 15

Next, we calculate their sum: $1 + 3 + 5 + 7 + 9 + 11 + 13 + 15$

Let's add them step-by-step: $1 + 3 = 4$ $4 + 5 = 9$ $9 + 7 = 16$ $16 + 9 = 25$ $25 + 11 = 36$ $36 + 13 = 49$ $49 + 15 = 64$

So, the sum of the first eight odd natural numbers is 64.

The average is the sum divided by the number of terms: $\text{Average} = \frac{\text{Sum of terms}}{\text{Number of terms}} = \frac{64}{8} = 8$

Thus, the average of the first eight odd natural numbers is:

3. 8

Would you like further details or have any questions?

Here are 5 questions you might want to ask:

1. How do you find the average of a sequence of numbers?
2. What are the first ten odd natural numbers?
3. How can you quickly sum a sequence of numbers?
4. Can you explain the difference between odd and even numbers?
5. What are some properties of odd natural numbers?

Tip: When finding the average of a sequence, first calculate the sum of all the numbers in the sequence, then divide by the number of terms in that sequence.