Which of the following sentences have an incorrect usage of preposition as per the rules of English grammar?
1. The manager was sitting at the desk.
2. My work is superior to yours.
3. I prefer coffee than tea.
4. She was accused for stealing gold.
5. This is an exception to the rule. 6. They are leaving to England soon.
The following diagram shows the number of people who play table tennis, Chess, Carrom and Ludo. If the total number of people is 600, then what is the number of people who play Chess and Ludo but not Carrom? 
Find the alternative which will replace the question mark in the figure below:
Find the correct alternative which will replace the question mark in the star diagram. 
Which shape comes next in the sequence ? 
Which shape comes next in the sequence? 