question

For a couple of them, you could consider using GetPlayerCombinedInfo with CloudScript or with the Client API.

Another alternative (that I haven't done, so I can't confirm it would work) would be to maybe add your results to a list or array in CloudScript, then return the list and have the client parse the results. For example:

//CloudScript
handlers.exampleFunction = function(args, context) {
    //example requests:

    var catalog = GetCatalogItems();
    var time = GetTime();
    var token = GetPhotonAuthenticationToken();

    return [catalog, time, token];
}



//Client
private void GetData() {
    PlayFabClientAPI.ExecuteCloudScript(new ExecuteCloudScriptRequest {
        FunctionName = "exampleFunction"
    }, result => {
        //do something with the result
    }, error => {
        //do something with the error
    }
}

I'm using async wrapper and then simply call Task.WhenAll to send multiple requests.

public static class PFAsync
{
	public delegate void PlayFabMethod<TIn, TOut>( TIn r, Action<TOut> o , Action<PlayFabError> e, object c, Dictionary<string, string> h);

	public static Task<TOut> Run<TIn, TOut>( PlayFabMethod<TIn,TOut> playfabMethod,
		TIn request, object customData = null, Dictionary<string, string> extraHeaders = null )
	{
		var tcs = new TaskCompletionSource<TOut>();

		Action<TOut> resultCallback = result => tcs.SetResult( result );
		Action<PlayFabError> errorCallback = error => tcs.SetException( new Exception( error.GenerateErrorReport() ) );

		playfabMethod.Invoke( request, resultCallback, errorCallback, customData, extraHeaders );

		return tcs.Task;
	}
}