Look up the local website of Saville-Holdsworth Ltd (SHL), e.g.

www.shl.com/shl/nz, www.shl.co.za or www.shl.com/SHL/hk or shl.com. Follow the trail site map; candidate helpline; practice tests;

you will then be able to do some of their psychometric tests on line.

The site also contains a lot of excellent information about selection and assessment.