Just search lang ng mga IQ questionnaire sa Internet. Most of the time related lang and slight lang yung variation sa tanong. For math and science, focus lang siguro sa "basics" or yung mga general concept na tinuro nung Junior High kasi di naman heavy ang computation since calculators are not...
True! I would like to emphasize na you need to learn the pseudocode / flowchart first para you have the idea kung pano sya ma e-execute. The syntax will come after.
True! Start ka sa Flowgorithm para maintindihan mo yung logic at takbo ng code. Para syang step by step na pag cocode tas no worries na sa syntax. After that, you can either choose between Python or C/C++ ;)