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

What number comes next in this sequence:
7 8 5 5 3 4 4 _

A boy was locked in a room by some robbers. All that is in the room is a piano, a calendar, and a bed. The room is locked from the outside. What does he eat, drink, and how does he escape and get out?

If you say my name, I will no longer exist. What am I?

On the dull night when the blonde was dozing, she heard an odd clamour and she saw that there was a bizarre man with a gun simply outside her home. So she raced to the telephone to call the police, however, she can't dial 911. Why?

One of the leprechaun is missing if you see the two pictures attached to this question. Where did he go? When he comes back, do you know where has he been?

Baseball bat and ball cost $100. If the bat cost $99 more than the ball, what is the cost of each?

The cream is heavier than Milk. True or False?

The first person saw the bridge step on it and crossed,
the second person saw the bridge did not step on it but crossed,
the third person did not see the bridge did not step on it but crossed.
Who are these people?

Can you count the number of triangles inside a triangle?