What question can you never answer yes to?

Replace the question mark with the correct number in the below-given picture?

Find the combined weight of the Cat, Dog and Rabbit in the given picture.

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Can you find out what is missing?

1 3 5
2 4 ?

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

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

It belongs to you, but other people use it more than you do. What is it?

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.

Find the next number in the sequence

1, 2, 6, 21, 88, __?

How can you take 2 from 5 and leave 4?