Verbal Reasoning - Mental Ability Questions

In the following question, from the given alternative words, select the word which cannot be formed using the letters of the given word.
Superconductors

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
? , Microgram, Milligram, Gram

Consider the given statement/s to be true and decide which of the given conclusions/assumptions can definitely be drawn from the given statement.
Statements:
1. All cycles are ducks.
2. All ducks are swans.
Conclusions:
I. All swans are cycles.
II. Some swans are cycles.

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

a_b_cc_a_b_c

In the following question, select the number which can be placed at the sign of ? from the given alternatives.

Select the missing number from the given options?

If 5Δ1 = 40, 9Δ9 = 0 and 7Δ1 = 60, then find the value of 4Δ9 = ?

If L stands for +, M stands for -, N stands for x and P stands for /, then 8 N 9 L 60 P 3 M 13 = ?