In the sequence 7, 14, 21, 28, 35, how many times does the number 21 occur?

A. 1

If 'HELLO' is coded as 'IFMMP', what would be the code for 'WORLD'?

A. XPSME

What is the next letter in the series: A, C, E, G, ?

B. H

A cyclist covers a distance of 45 km in 1.5 hours. What is the cyclist's speed?

B. 30 KM/H

What comes next in the series: A1, B2, C3, D4, ?

A. E5