a) There is no smoke without fire.
After rain comes fair weather.
c) Doubt is the beginning not the end of wisdom.
Like a needle in a haystack.
e) Haste makes waste.
f) A wolf in sheep's clothing.
g) He that knows nothing doubts nothing.
Find the needle in the haystack.
i) He that has no head needs no hat.
Score twice before you cut once.
A friend is never known till needed.
After a storm comes a calm.
Forewarned is forearmed.
n) A friend in need is a friend indeed.