What numbers should go on the bottom line?
3 6 9 15
8 2 10 12
11 8 19 27
19 10 29 39
? ? ? ?

What is the coolest letter in the alphabet?

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

Can you find the 09 errors in the picture below?

Make the seating arrangement of 10 children in such a way that there are 5 rows with 4 children in each row.

Chocolate costs 6 rupees and a Toy costs 5 rupees. If you have 32 rupees in total, how many chocolates and how many Toys can be purchased with that amount?

Can you decipher the two rows to find the hidden word?

I throw two dice simultaneously.

What is the probability of getting a sum as 9 of the two numbers shown?

Find the next number in the series below.

6 18 270 72090 ?

What can you hold in your right hand, but never in your left hand?