Replace each alphabet with the number (1-9) to make the below equation correct.

AB * C = DE - F = GH / I

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

The average age of 10 members of a committee is the same as it was 4 years ago, because an old member has been replaced by a young member. Find how much younger is the new member ?

I can be made.
I can be cracked.
I can be told.
I can be played.

Who am I?

Can you find the largest Three-digit number whose sum is 14 and whose square is less than 5,00,000?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

In which direction should the missing arrow point?

How many words can a pen with half refill write?

You may enter, but you may not come in. I have space, but no room. I have keys, but open no lock. What am I?