Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

What has many keys but can’t open a single lock?

Find the Odd One Out?
84129
32418
47632
36119
67626
72927

Chhote se Chintu Miyan,
Lambi si Pooch.
Jahan Jaye Chintu Miyan,
Wahan Jaye Pooch.

छोटे से चींटू मियाँ,
लंबी सी पूंछ।
जहाँ जाये चींटू मियाँ,
वहाँ जाये पूंछ।

Bolo kya?

What seven-letter word has hundreds of letters in it?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

There are 2 people near the river and both of them want to get on the other side. The boat can only take one of them. But they got across.
How?

Three friends decide to distribute the soda cans they had among them. When all of them had drunk four cans each, the total number of cans that remained was equal to the cans each one of them had after they had divided the cans.

Can you calculate the total number of cans before distribution?

There are 2 cops parked along a one-way street looking for traffic violations. They spot a taxi driver going in the wrong direction, yet they do nothing.

Why?

Find The Next Number In The Sequence

30 10 15 13 0 16 -15 ?