When 99 is considered higher than 100?

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?

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

Christina has four daughters, and each of her daughters has a brother. How many children does Christina have?

Can you count the number of triangles in the given figure?

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

The current time can be represented by below textual rebus.

0
=========
B.Sc
LLB

Can you tell us the current time?

Replace the question mark with the correct number.

2 + 2= 4
3 + 3= 18
4 + 4= 48
5 + 5= ?

You walk into a room where there are three primates held in their respective cages:
1) A lion who is eating the flesh of a goat.
2) An orangutan who is playing with blocks.
3) A donkey who is sitting idle.

Who is the most intelligent primate in the room?