Who was the American astronaut who returned to Earth after spending 340 days in International Space Station?

If '+' means 'multiplication', '-' means 'division', 'x' means 'subtraction' and '/' means 'addition', then 9 + 8 / 8 - 4 x 9 =

If in a certain code language, PROMOTION is written as 365458957, how will the word MONITOR be written in that code language?

4 years ago, the ratio of Vikah's to Rahul's age was 3:5. After 6 years, this ratio would become 4:5. Find present age of Rahul.

If @ means +, # means -, $ means x and * means /, then what is the value of 16 @ 4 $ 5 # 72 * 8 = 

Which is the fastest land animal in the world?

Which of the following refers to the number of pixels per inch, printed on a page?

The angle of elevation of the top of a tower at a distance of 25 m from its foot is 60 deg. The approximate height of the tower is