Solve below rebus puzzle?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

Different lights make me strange by changing me into different sizes. What am I?

What does this Rebus Picture mean?

Prove that twice of ten is the same as twice of eleven.

I am looking for a word that change both gender and number when i add the letter 'S'.

What Word am I Looking For ?

A man was going to bleach his socks because they had gotten muddy the day before. As he was pouring the bleach into the washing machine, he spilt some on the floor. He got some cleaning fluid and mopped it up with a rag. Minutes later he was dead. What killed him?

A Child was born in Lahore, Pakistan. Still, the child is not a Pakistani citizen. why?

The answer I give is yes, but what I mean is no. What was the question?

I ask Joseph to pick any 5 cards out of a deck with no Jokers.

He can inspect then shuffle the deck before picking any five cards. He picks out 5 cards then hands them to me (Jack can't see any of this). I look at the cards and I pick 1 card out and give it back to Joseph. I then arrange the other four cards in a special way, and give those 4 cards all face down, and in a neat pile, to Jack.

Jack looks at the 4 cards i gave him, and says out loud which card Joseph is holding (suit and number). How?

The solution uses pure logic, not sleight of hand. All Jack needs to know is the order of the cards and what is on their face, nothing more.