Which shortcut key is used to check spelling and grammar

How many numbers are immediately preceded and succeeded by symbol?

6 7 @ # 2 8 8 $ 5 4 % 5 ! & # * 7 * + 9

If R = 10, RAT = 78, then ‘RATE’ will be equal to?

Select the option that is related to third number-cluster in the same way first number cluster is related to second number-cluster.

268 : 284 :: 429 : ?

Select the combination of letter that when sequentially placed in the blanks of the given series will complete the series.

Select the set of numbers that is similar to the following set:

(24, 31, 37)

Select the option in which the numbers are related in the same way as are the numbers in the given set.

(15, 48, 98)

Select the option that is related to the third number in the same way as the second number is related to the first number.

53: 636 :: 51: ?