What do you answer even though it never asks you questions?

A maths symbol is hidden in the below Bar Graph. Can you decipher it?

While preparing the table for dinner, wife came up with an idea to tease his mathematician husband. She asked her husband to pick nine toothpicks and make ten without breaking any toothpick.

The husband was also smart and did it within seconds. How ?

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Find the hidden tiger in the given optical illusion ?

If it took eight men ten hours to build a wall, how long would it take four men to build it?

Decode this picture on T-Shirt and tell what it says ?

What is common among 11, 69, and 88?

Can you place six X (crosses) in below board without making three in a row in any way ?

Can you solve this tricky maths equation problem by replacing it? mark with the correct symbol?

19834 -----: 187
15921 -----: 153
17561 -----: 139
13734 -----: ???