Logical Reasoning

K, J, L, I, M, H, N, ?, ?

PSQR, P4Qs, P3QT, ______, P1QV

Complete the series: ____ SWWS ____ WWWS ____ SWWWW ____ SSS

5 0 3 5 = 20. Insert operators:

3, 4, 7, 11, 18, 29, 47, ?

Z, X, U, Q, ?

Hexagon puzzle: corners 46, 1, 09, 6 with center ? (Logic: (TL+BL)-(TR+BR))

Complete: r ___ s ___ d ___ s p ___ r a s ___ d