What is the id and name of the browser that is compatible with the most web accelerators?
SELECT T1.id ,  T1.name FROM browser AS T1 JOIN accelerator_compatible_browser AS T2 ON T1.id  =  T2.browser_id GROUP BY T1.id ORDER BY count(*) DESC LIMIT 1
id and name refer to selecting T1.id, T1.name; most web accelerators compatible refers to MAX(count(*)) in the context of joining browser table with accelerator_compatible_browser table on their common id;