What is always in front of you but can’t be seen?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

Replace the (?) with the correct mathematical signs to make the expression equal to 59.

18 ? 12 ? 4 ? 5 = 59

I am the beginning of the end, and the end of time and space. I am essential to creation, and I surround every place. What am I?

In the image given, you can find several triangles. Can you count them all?

You have a roll of cloth 1km long. You have a machine which cuts this roll into pieces of 10-meter-long cloth.

How long would it take for the machine to cut the roll if each cut took 4 secs?

A blonde put eyeliner on her head. Why?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

Accidentally, two trains are running in the opposite direction and enter a tunnel that is 200 miles long. A supersonic bird that has fled the lab and taken shelter in the tunnel starts flying from one train towards the other at a speed of 1000 mph. As soon as it reaches the second train, he starts flying back to avoid collision and meets the first train again at the other end. The bird keeps flying to and fro till the trains collide with each other.

What is the total distance that the supersonic bird has traveled till the trains collided?

John buys rice at Rs.60/kg from Britain and then sells them at Rs.5/kg in India. As a result of this, he becomes a millionaire. How come?