Find out the alternative figure which contains figure (X) as its part.

After cutting and opening the paper as shown in the question figures below, which shape will it look like?

How many triangles are in the figure?

Pituitary: Brain :: Thymus : ? 

Directions : In each of the questions below are given four statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.

Statements:
Some boxes are toys.
Some toys are nails.
Some nails are stores.
Some stores are shops.
Conclusions:
I. Some shops are toys.
II. Some nails are boxes.
III. No shop is toy.

Which on set of letter complete the given series ?
_bc_ca_aba_c_ca

Deepak said to Nitin, " That boy playing football is the younger of the two brothers of the daughter of my father's wife. " How is the boy playing football related to Deepak? 

Which number replaces the question mark?