What is the fewest number of coins that would be required in order to make sure each and every coin touches exactly three other coins?

Prove that twice of ten is the same as twice of eleven.

Can you divide numbers from 1 to 9 (1 2 3 4 5 6 7 8 9) into two groups so that the sum of the numbers of each group is equal?

Note: 9 cannot be turned over to make it 6.

O_er_t_o_

Complete the missing letters of the given word.

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

I have a clock(12-hour format) and both the needles of the clock overlap at 12:00.
After how much time, they will overlap again?

Identify The phrase in the picture.

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

I have lakes with no water, mountains with no stone and cities with no buildings. What am I?

If you paint a brown house white it will become a white house. If the stoplight changes from red to green, then the light is green. So, if you throw a white shirt into the Red Sea, what will it become?