Count the number of triangles in the below picture?

Why is it very easy to weigh a fish?

Is the statement valid that it does not matter how much older a sibling is, eventually the younger one will be half as old as the older one?

A Miser man decided to go on a vacation for a month. He goes to the bank and asks for a trip loan of $500. The bank officer asks the man that the loan can only be approved when he mortgage some valuable thing at the bank. Miser man mortgages his only car whose worth was a whopping $80000. The Bank officer laughed at him and approve the loan instantly. After vacation when the miser man returns, the bank officer asked him "Are you an idiot, why is your mortgage such an expensive car for such a short loan?".

Miser man replied with some reason and the bank officer agreed that the miser man is actually not an idiot.

What did miser man reply to the bank loan officer?.

A doctor and a boy were fishing. The boy was the doctor’s son, but the doctor was not the boy’s father. Who was the doctor?

There's one "sport" in which neither the spectators nor the participants know the score or the leader until the contest ends.

What is it?

Buy me, smell me or deliver me, I do not change.

Who am I?

I am under you when I am whole.
I shift above you if you remove the first letter.
I come all around you if you remove the second as well.

Can you tell me who I am?

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Which is the smallest number that you can write using all the vowels exactly once?