How can you make number one disappear by adding something to it?

can you solve the below rebus puzzle?

Replace the question mark with the correct number.

A letter is hidden in the image in plain sight. Can you spot it in 6 seconds? Test your eye power now!

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What is the next number?

77, 49, 36, 18 ?

There are two insects on a tile. Insect X is sitting on one side of the tile (point A) and Insect Y is sitting opposite on the other side of the tile (point B). Now both of them decide to change their position and thus X starts crawling to point B and Y starts crawling to point A. When they meet and pass each other in between, X takes 20 seconds to reach B and Y takes just 5 seconds to reach A.

Can you calculate the total time each of the insects took to change their positions?

How many triangles can you count in the figure given?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Solve the equation in the image by looking at the pattern closely.