Select the wrongly spelt

Select the number from among the given options that can replace the question mark (?) in the following series. 543, 518, 495, 474, 455, ?

Which two numbers should be interchanged to make the following equation equal? 

16 + 8 × 24 ÷ 4 – 26 = 30

In a certain code language,

'time has come' is coded as 'et im ak';

'come with money' is coded as 'nd ak co' and 

Which answer figure will complete the pattern in the question figure? (rotation is not allowed)

If 'A' stands for '÷ ', 'B' stands for '×', 'C' stands for + and 'D' stands for '–', what will come in place of the question

A paper is folded at the dotted lines as shown in the first two figures. and cut as shown in the third figure How will it appear when unfolded?

CALANDER is coded in a code as CLANAEDR. Find the code for CIRCULAR under the same rule.

Select the number from among the given options that can replace the question mark (?) in the following series.

3, 17, 73, 297, ? , 4777