How many times the keys of a typewriter have to be pressed in order to write number from 121 to 1346?

Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

What value will come in place of question mark (?) in the questions given below?

88 × 25 ÷ 4 + 6³ = ?

A man read 2/5 part of a book in 1st day, 34% in second day and remaining page in next two days. In two days he read equal number of page. If he read 52 page on last day, then find out how many page did the book contain? 

If * means adding 6 times the second number to the first number then ( 1 * 2 ) *   3 equals : 

A number when divided by the sum of 555 and 445 gives two times their difference as quotient and 30 as the remainder. The number is: 

Find the value of 13/16 share of land whose 9/7 share is worth 10,116.

The difference between the average of squares of the last four numbers and the product of the first two numbers of 6 consecutive odd numbers is 114. Find the first number.