What does below rebus means ?

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

A clock loses 10 minutes each hour. If the clock is set correctly at noon, what time is it when it reads 3 PM?

John and Jacob are twin brothers. One of them is a liar whereas the other one is a truth-teller.

I called their home number and one of them picked up.
I asked. 'Does John lie?' The person replied with a yes.

Whom did I talk with, John or Jacob?

Can you count the number of seconds in a year?

Clue: You need to bother about calculation.

We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

A boy and a girl are sitting on the porch.
"I'm a boy," says the child with black hair.
"I'm a girl," says the child with red hair.
If at least one of them is lying, who is which?

I noticed one of the words in the oxford dictionary is spelled incorrectly. What about you?

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Make a sentence consisting of three words that have the whole alphabet.