Can one give interest money to Gaza?

The answer is no. Any wealth that we give away in terms of sadaqah, helping our brothers and sisters in Gaza and wherever it may be, has to be pure wealth. If you do have any money that is interest money, then there are a number of large charities, Islamic Relief for example, whereby if you go onto the website, you will find specific categories where you can donate that riba money towards, but you can't just use it in terms of giving it to sadaqah for others.