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

Find the next number in the series.
1 10 24 43 67 ?

A man calls his dog from the opposite side of a river. The dog crosses the river without a bridge or a boat and manages to not get wet. How is this possible?

Where do you go to learn how to make ice cream?

Can you find out the number that should replace the question mark with a valid reason?

I know there are two methods by using three time the same number with a plus(+) operator , you can make sum as 60.

One of them is 20+20+20.

whats the other way ?

When it is alive we sing, when it is dead we clap our hands. What is it?

There is one thing that goes round the house and also inside the house but never even share a brief touch. What is it?

what does the below rebus mean?

On a certain day, John celebrated his birthday. Two days later, his older twin brother Jacob celebrated his birthday.

Is this even possible? How can it be?