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

What is the centre of gravity?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

Can you make a fire with just a single stick?

What does this below rebus puzzle mean?

What number should come in place of the question mark below?

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

Three brothers Jacob, John, and James live in Mexico City. The product of the ages of these brothers is 175. Jacob and John are twins. How old is James?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

Select from the four options below!

a) Geneva, Switzerland
b) New York City, USA
c) Paris, France
d) London, England