What word begins and ends with an E, but has only one letter?

Which digit occurred maximum times between the number 1 and 1000?

Solve the following series:
AZ, GT, MN, __, YB

Two boys wish to cross a river. The only way to get to the other side is by boat, but that boat can only take one boy at a time. The boat cannot return on its own, there are no ropes or similar tricks, yet both boys manage to cross using the boat.

How?

If you’ve got me, you want to share me; if you share me, you haven’t kept me. What am I?

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

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

There is a hypothetical state between the USA and Mexico border 'Tango'.
Here 70 percent of the population have defective eyesight, 75 percent are hard of hearing, 80 percent have Nose trouble and 85 percent suffer from allergies, what percentage (at a minimum) suffer from all four ailments?

Count the number of triangles in the picture below:

Count the number of balls in picture below: