You can use arguments, which is a special king of object holding all arguments passed to a function
$.when.apply($, requests).done(function () {
console.log(arguments); //it is an array like object which can be looped
var total = 0;
$.each(arguments, function (i, data) {
console.log(data); //data is the value returned by each of the ajax requests
total += data[0]; //if the result of the ajax request is a int value then
});
console.log(total)
});