What's the best place to go shopping in the ocean?

What is the riddle which can be asked all day with a different correct answer each time.

What occurs twice in a week, once in a year but never in a day?

Suppose we lay down two cups in front of you. One of the cups is filled with tea and the other one with coffee. Now we ask you to take a spoonful of tea and mix it with the coffee. At this moment, the coffee cup has a mixture of tea and coffee. You have to take that mixture (spoonful) and add it back to the tea.

Can you now tell if the cup of coffee has more tea or the cup of tea has more coffee?

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Find the missing number in the image below.

How could a baby fall out of a twenty-story building onto the ground and live?

What does below rebus means ?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?

It is deaf, Dumb and Blind!!!

Still, always tells the truth. What is it?