Running 4/3 of his usual speed, a person improves his timing by 10 minutes. Find his usual time to cover the given distance.

What will come in place of question mark ( ? ) in the following series?
656, 352, 200, 124, 86, ? 

There are 24 peaches, 36 apricots and 60 bananas and they have to be arranged in several rows in such a way that every row contains the same number of fruits of only one type. What is the minimum number of rows required for this to happen? 

Sai can do any work in 17 days. While Bindu can do it in 51 days. Sai works on the first day Bindu works on the second day and this sequence continues until the work is over. How many days will it take to complete the work?

A number of friends decided to go on picnic and planned to spend Rs. 108 on eatables. Three of them however did not turn up. As a consequence, each one of the remaining had to contribute Rs 3. extra. The number of them who attended the picnic was:

Four years ago, the respective ratio between the age of Ram and that of Sonu, was 4 : 9. Tina is ten years older than Ram. Tina is ten years younger than Sonu. What is Tina's present age? 

What is the angle between minute and hour hand ate 11:10?