What is a word made up of 4 letters, yet is also made up of 3. Sometimes is written with 9 letters, and then with 4. Rarely consists of 6, and never is written with 5.

What word does this rebus represent?

meta meta
meta meta

A prisoner is told: "If you tell a lie, we will hang you and if you tell the truth, we will shoot you." What did the prisoner say to save himself?

Twenty frogs are sitting on a log floating on the surface of a river. Two of them decide to jump off into the water.

How many frogs are there on the log at this moment?

Count the number of triangles in the below picture?

Can you solve below mathematical equation?

2^1234 - 2^1233

Can you think of any three-dimensional shape that comprises of exactly two surfaces?

Which word is least like the others? Third, fourth, fifth, sixth, seventh, eighth, ninth?

A mathematics teacher took exams for his students. Out of the total students, 25% passed both the tests included in the exam. However, only 42% were able to clear the first test.

Can you find out the percentage of those students who passed the first test and also passed the second test?

The more you take me, the more you leave me behind.
Who Am I?