How can you take 2 from 5 and leave 4?

You have a basket containing ten apples. You have ten friends, who each desire an apple. You give each of your friends one apple.
Now all your friends have one apple each, yet there is an apple remaining in the basket.
How?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

Name a key which is hardest to turn.

What does below Rebus mean ?

esgg sgeg gegs gsge

No one wants to have it, but if one got it, he does not want to lose it. What is It?

Find The Next Number in this series.
1, 2, 6, 42, 1806 ?

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?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

Using mathematical symbols like +, -, and x in order to make the equations correct. Replace # with the above-given symbols.

9 # 8 # 7 # 6 # 5 # 4 = 91