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

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

I am a type of food that is often found in the fridge and can be white in colour. What I am?
Hint 1: I am a dairy product.
Hint 2: You can spread me on the bread.

If we add four times the age of John four years from now to five times his age five years from now we get ten times his current age.

How old will John be two years from now?

How many times can you subtract the number 5 from 25?

Can you find the missing letter in the sequence?
S - T - I - L - ? - T - F - Y - C

In Greek mythology, the Sphinx sat outside of Thebes and asked this riddle of all travellers who passed by. If the traveller failed to solve the riddle, then the Sphinx killed him/her. And if the traveller answered the riddle correctly, then the Sphinx would destroy herself. The riddle:

What goes on four legs in the morning, on two legs at noon, and on three legs in the evening?

Oedipus solved the riddle, and the Sphinx destroyed herself.

Why did Navjot Singh Sidhu put the new January calendar in the freezer

Christina is practising her dance steps along with her friends. In a particular sequence, all of them form a row. At that point, Niharika is standing in the 4th position from either end of the row.
Can you find out how many girls are practising together?

When you say goodbye, I am what you need to tie.
I come as a couple and go wherever you run.
Who am I?