I travel all around the world but always stay in the corner. What am I?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Can you complete the sequence?

192, 021, 222, 324, 252, 627, 2__, 9__?

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?

Which is faster, Heat or Cold ? Explain.

Using eight eights and addition only, can you make 1000?

It has horns but can’t beep. It is like to bleat but It is not a sheep. What is it?

Can you find a seven digit number which describes itself. The first digit is the number of zeros in the number. The second digit is the number of ones in the number, etc. For example, in the number 21200, there are 2 zeros, 1 one, 2 twos, 0 threes and 0 fours.

Can you find the least possible number such that

If the number is divided by 3, it gives the remainder of 1;
If the number is divided by 4, it gives the remainder of 2;
If the number is divided by 5, it gives the remainder of 3;
If the number is divided by 6, it gives the remainder of 4.