(i) Sum of two odd numbers is an ......... number.
(ii) Product of two odd numbers is an ........ number.

Answer

To solve the question, we need to determine the results of two operations involving odd numbers: the sum and the product.

### Step-by-Step Solution:

**(i) Sum of two odd numbers:**

1. **Understanding Odd Numbers:**
- Odd numbers are integers that are not divisible by 2. Examples include 1, 3, 5, 7, 9, etc.

2. **Adding Two Odd Numbers:**
- Let's take two odd numbers, for example, 3 and 5.
- When we add them:
\[ 3 + 5 = 8 \]
- Another example could be 1 and 9:
\[ 1 + 9 = 10 \]
- In both cases, the result is an even number.

3. **Conclusion for the First Part:**
- The sum of two odd numbers is always an even number.

**(ii) Product of two odd numbers:**

1. **Understanding the Product of Odd Numbers:**
- Now, let's multiply two odd numbers. We can take 3 and 5 as examples again.
- When we multiply them:
\[ 3 \times 5 = 15 \]
- Another example could be 7 and 3:
\[ 7 \times 3 = 21 \]
- In both cases, the result is an odd number.

2. **Conclusion for the Second Part:**
- The product of two odd numbers is always an odd number.

### Final Answers:
(i) Sum of two odd numbers is an **even number**.
(ii) Product of two odd numbers is an **odd number**.