Smartkeeda.com is a great website for the students who prepare for various competitive exams like banking or ssc exams, cds, mat, ctet etc. The website has a great number of aptitude questions and answers with explanation of each on subjects like - maths, reasoning, logical reasoning, general english, interview preparation etc. It also has objective type questions on professional subjects like computer knowledge, marketing knowledge and banking awareness.
One can also download sample or previous years test papers of the abovementioned exams for free.
The best feature as per my view is refined design and presentation that gives its users a pleasant and clutter free experience while studying or searching for online study material for these exams.