If in a car race, the man who came two places in front of the last man finished one ahead of the man who came fifth, how many contestants were there?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

Can you write down eight eights so that they add up to one thousand?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

With pointed fangs I sit and wait; with piercing force I crunch out fate; grabbing victims, proclaiming might; physically joining with a single bite. What am I?

If your uncle’s sister is not your aunt, what relation is she to you?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.

What is the below Rebus indicate?

You need to complete the maze by entering from the entrance marked below in the figure near the yellow circle, bottom left and leaving from the exit point near the green circle, bottom middle.

Rule of Game: You can move only by exchanging green and yellow circles.

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?