'Hardworking' is a synonym for 'diligent'.

'Joyful' is a synonym for 'happy.'

'Plentiful' is a synonym for 'abundant', meaning existing in large quantities.

The synonym of 'happy' is 'joyful.'

'Fast' is a synonym of 'quick'.

'Carrot' is a vegetable, while the others are fruits.

Carrot is a vegetable, while the others are dairy or grain products.

Paper is a medium, while the others are tools for creating art.

Paper is not a writing instrument, while the others are.

'Rapid' is a synonym for 'quick'.

Circle is a shape, while the others are colors.

Apple is a fruit, while the others are shapes.

The logical sequence of times of day is 'Sunrise, Noon, Sunset'.

The code corresponds to the position of numbers in the alphabet: 1=A, 2=B, 3=C, so 4=D, 5=E, 6=F, thus 456 is DEF.

The code reverses the order of the numbers, so '456' becomes 'FED'.

The numbers are reversed; thus 456 becomes 654.

The conclusion is valid because a parent cannot also be a child in the same relationship context.

'CAB' corresponds to '3', '1', '2' which is '321'.

'E' is the 5th letter in the alphabet, so it is coded as '5'.

B=2, A=1, D=4; thus BAD is coded as 214.

C=3, A=1, B=2; thus CAB=312.

C=3, A=1, T=20. Therefore, CAT is coded as 312.

F=6, I=9, S=19, H=8; thus FISH=614891.

Z is the 26th letter of the alphabet, so it is coded as 26.

The code is a reverse alphabet: H->S, E->V, L->O, L->O, O->L. Thus, HELLO is coded as SVOOL.

The coding is in reverse order. C is the 3rd letter, so it is coded as X (24th letter).

The code is a reverse of the alphabet. M is the 13th letter, so it is coded as N (14th letter).

C=3, A=1, B=2, B=2, A=1, G=7, E=5. Total = 3+1+2+2+1+7+5=21.

The conclusion is valid due to the transitive property of height.

'D' corresponds to '4' in the same pattern.