What has one letter and starts with an E?

what does this picture(rebus) riddle means ?

You are playing a game with your friend Jack. There are digits from 1 to 9. You both will take turn erasing one digit and adding it to your score. The first one to score 15 points will win the game.

Would you want to play first or second?

PS: The sum should be exactly 15.

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

Remove two matchsticks to make the below equation correct.

Take one out and scratch my head, I am now black but once was red. What am I?

Four people need to cross a rickety bridge at night. Unfortunately, they have only one torch and the bridge is too dangerous to cross without one. The bridge is only strong enough to support two people at a time. Not all people take the same time to cross the bridge. Times for each person: 1 min, 2 mins, 7 mins and 10 mins. What is the shortest time needed for all four of them to cross the bridge?

What is the last thing you take off before bed?

In the picture given below, can you find out which digit will take place of the question mark?

Identify Me

Hint1: I am a god
Hint 2: I am a planet
Hint 3: measurer of heat