Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Spot what is wrong here in below Picture?

What is the last thing you take off before bed?

What is both possible and impossible at the same time?

There was once a troop of 5 elves. The 5 elves were very dedicated on finding the magical treasure of 1000 coins. However, being elves, they were super geniuses, very greedy and they did not hesitate in taking lives of other elves. The 5 elves were named Aye, Bee, Cee, Dee and Ee, ranked from high to low respectively, from Aye to Ee. One fine day, their efforts brought results and they found 1000 coins. Now they had to split it in between them as per their ranks. The lowest ranked elf has to make the proposal. If the proposal is accepted by majority, it is agreed, or the suggesting elf is killed.

What proposal should elf Ee make ?

I can write cow in 13 letters.

Can You?

Which is Odd One Out and why?

4377

3954

9862

8454

9831

My sock drawer has 26 blue socks, 13 pink socks, 33 green socks, and 12 red socks, how many socks would I have to pull out in the dark to be sure I had a matching pair?

What is the next number in the series?

15 29 56 108 208 ?