Can you replace the question mark with the correct number?

Can you find out what is missing?

1 3 5
2 4 ?

Hint: It's not six. Think out of the box.

What's a single-digit number with no value?

These types of puzzles are known as charades. What you have to do is find two words that are referred to in the first stanza and the second stanza and put them together to form the third word in the third stanza.

Just for example, if my first refers to 'off' and my second refers to 'ice', then my whole will be office.

My first is present - future's past -
A time in which your lot is cast.

My second is my first of space
Defining people's present place.

My whole describes a lack of site -
A place without length, breadth, or height.

A cricket has 6 legs, a squirrel has 4 legs and a spider has 8 legs.

In a local zoo, it was found that the total number of legs is 612. Also, there are equal number of each of the above animals/insects.

Can you find out how many animals are there in the zoo?

What goes up but never comes down?

What came first, the chicken or the egg?

Can you complete the sequence?

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

Which Burger Is Different in below image?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?