Verbal Reasoning - Mental Ability Questions

In the following question, select the related word from the given alternatives.
Kilometre : Metre : : Tonne : ?

If '+' means '÷', '÷' means '­', '­' means 'X' and 'X' means '+', then 48 + 16 x 4 ­2 ÷ 8 = ?

If 8 θ 12 δ 6 = 60 and 13 θ 15 δ 11 = 74, then 18 θ 21 δ 15 = ?

If 8*9 = 36, 12*4 = 24 and 14*6 = 42, then find the value of 18*6 = ?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
l_n_o_m_lm_o

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

-1, 1, 4, 9, 16, ?

If in a certain code, GREEN is written as ITGGP, then how will OINK be written as in the same code?

Select the odd number from the given alternatives.