1. Reverse a string without reverse function. 2. Palindrome check - a function with return value. 3. Exposure to locator strategies, and axes.

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Answering questions related to string manipulation, palindrome check, and locator strategies.

To reverse a string without using the reverse function, you can iterate through the characters of the string from the end to the beginning and build a new string.
For palindrome check, compare the original string with its reverse. If they are the same, then it is a palindrome.
Locator strategies in automation testing involve identifying elements on a web page using different methods like ID, class name, XPath, etc.
Axes in XPath are used to navigate the XML document tree. For example, the 'ancestor' axis selects all ancestors of the current node.