Before Mount Everest was discovered, what was the highest mountain in the world?

Why 1729 is a magic number? Answer Logically.

If eleven plus two equals one, what does nine plus five equal?

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?

Kids with the most attentive eyes can spot a different watermelon in 4 seconds. Can you? Test your eyes now!

I have an eye but still cannot see.

Who am I?

Find 3 Differences Within This Excursion Scene In 20 Seconds

I don't get anymore wetter, no matter how much rain falls on me.

Sharpest vision can find the lamp in the desert. Are you one of them? Test your observation skills now!

O_er_t_o_

Complete the missing letters of the given word.