IQ test

it seems very boring here...have some IQ test u guys^^

1) what is a four letter word that end in k and means the same as intercourse?

2)what can you find in a man's pants that is about 14 cm , has a head on it,and woman love so much tat often blow it?

3)what is it that all men have one of,it's longer on some men than on ohters, and a man gives it to his wife after they're married?

4)there is a mute man who wants to buy a toothbrush,by imitating the action of brushing his teeth,he successfully expresses himself to the shopkeeper and the purchase is completed
now .there is ablind man who wishes to buy a pair of sunglasses.how should he express himself?

5)which animal is very selfish?

if very lame don blame oh..^^answer will b post during night time...