A shepherd had 18 sheep, out of which, all but ten died.

Can you tell us how many sheep was he left with?

I cannot talk, but I always reply when spoken to. What am I?

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

I have teeth but i don't bite. Who Am I ?

Can you find out which number multiplied by itself will give the output as 12345678987654321?

At my favorite fruit stand,
an orange costs 18,
a pineapple costs 27,
and a grape costs 15.
Using the same logic, can you tell how much a mango costs?

Look at this sequence from top to bottom. What is the next number in the sequence?
1
11
21
1211
111221
312211

A man fell off a smuggling boat into deep water. He could not swim and he was not wearing anything to keep him afloat. It took 30 minutes for the people on the boat to realize someone was missing. The missing man was rescued two hours later on the return trip. Why didn't he drown? Note:- He didn't know swimming, the sea was deep, and He wasn't holding anything

What's the only room from which no one can enter or leave

Can you decipher the below rebus?

PBLUESAISNUERSES