Can Nokia X,X+,XL run android apks?
You can side-load any Android app provided you have the APK.

However, by default these phones do not come pre-installed with Google's core applications like the Play Store. But you can "hack" the devices and install Google Apps. Needless to say it will void warranty and root access is required.

There is this guide in XDA Forums that should help people install Google Services on their Nokia X device.